13 best iron for plants

Iron is an essential micronutrient for plants, playing a crucial role in various physiological processes. It is vital for the overall health and growth of plants, and a deficiency in iron can lead to poor growth, yellowing of leaves (a condition known as chlorosis), and reduced crop yields. Here's what you need to know about iron for plants:

  1. Role of Iron in Plants:

    • Iron is a key component in the production of chlorophyll, the green pigment responsible for photosynthesis.
    • It facilitates the transport of electrons within the plant during photosynthesis and respiration.
    • Iron is also involved in nitrogen fixation in leguminous plants.
  2. Iron Deficiency Symptoms:

    • Yellowing of young leaves, typically starting with interveinal chlorosis (yellowing between the leaf veins).
    • Reduced plant growth and vigor.
    • Stunted root development.
    • Decreased fruit or flower production.
  3. Causes of Iron Deficiency:

    • Poor soil conditions: High pH (alkaline soil) can limit the availability of iron to plants.
    • Excessive moisture: Waterlogged or poorly-draining soils can reduce iron uptake.
    • Competition with other nutrients: High levels of other micronutrients like manganese can interfere with iron absorption.
  4. Iron Sources for Plants:

    • Iron Chelates: Iron chelates are water-soluble forms of iron that are readily available to plants. They are often used as soil or foliar applications to correct iron deficiencies.
    • Iron Sulfate: Iron sulfate is a common inorganic iron fertilizer that can be applied to the soil to improve iron availability.
    • Organic Matter: Compost and organic matter can enhance iron uptake by improving soil structure and microbial activity.
  5. Application Methods:

    • Soil Application: Iron can be incorporated into the soil before planting or applied as a side dressing around established plants.
    • Foliar Spray: In cases of severe iron deficiency, a foliar spray of iron chelate can be applied directly to the leaves for rapid absorption.
    • Drenching: For container-grown plants, iron solutions can be drenched into the root zone.
  6. Prevention and Management:

    • Soil testing is essential to identify iron deficiencies and adjust soil pH if necessary.
    • Proper watering practices to prevent waterlogging.
    • Regular addition of organic matter to improve soil structure and nutrient availability.
    • Maintaining a balanced nutrient regimen to avoid nutrient imbalances that can affect iron uptake.

In summary, iron is a vital micronutrient for plant growth and development. Recognizing the signs of iron deficiency and providing the necessary iron supplementation through appropriate fertilizers and soil management practices is crucial for maintaining healthy and productive plants in your garden.

Below you can find our editor's choice of the best iron for plants on the market
  

Espoma IT5 Iron Tone Bag, 5-Pound

Espoma

Based on 670 reviews Check latest price

Product description

For a naturally green garden. Fast acting, non staining turns yellow leaves deep green. For Lawn, Veggies, tree & shrubs.

  • For a naturally green garden
  • Fast acting, non staining turns yellow leaves deep green
  • For Lawn, Veggies, tree & shrubs
  • Iron tone is an all natural iron supplement
  • Provides 5 percent iron and 13 percent sulfur
  • Restores deep green color to yellow chlorotic plants
  • Will not stain patios or walkways
  • Comes in 5-pound bag

User questions & answers

Question: Como se usa con agua o solo espolvoreado
Answer: Lawns: 2-3 tablespoon full per 100 sq ft, flowers, trees, roses, shrubs: 1 tbs per gallon of water.
Question: Will this help a sickly Stewartia camellia? light green leaves with crispy edges starting
Answer: Don't know what Hardin As is, but it works on all plants and trees
Question: not sure i purchased the correct product... i need to mix this with water for potted roses will this product work
Answer: No, but it helps. Even the cheap ones will work fine with this. I suggest Southern Ag Spreader/Sticker at a 1oz per 1000 sq ft rate. I hope this helps. JoeEntomologistePestHero
Question: My lawn was the envy of the neighborhood until a friend mowed it too short. Will this remedy scorched yellow patches? I've been watering daily
Answer: 2-3 oz per gallon
Question: What is the mixture of iron to water
Answer: This figure is 7 3/8 inches tall.
Question: Will this work on Hardin As
Answer: Happens with many collectibles. I have had Hot Toys magnets just fall off the plastic. They somtimes use very light glue. Just a drop of superglue should do the trick
Question: Do i need a surfactant when applying to grass
Answer: yes it is very epic and realistic, it is worth the money.
Question: how many ounces or teaspoons per a gallon of water in a sprayer
Answer: yes. Infinity Stone has a light-up function. This product contains batteries.

Product features

Southern Ag Chelated Liquid Iron

  • Corrects Iron deficiency in flowers, vegetables, shrubs & trees
  • Also, use in the lawns for a deep, rich green color
  • CONTAINS: Iron 5%
  • USE ON: Flowers, shrubs, trees, vegetables and lawns
  • CONTROLS: Iron deficiency (yellowing foliage)
  • RATE: Foliar; 1 tablespoon per gallon
  • Soil Drench; 1 oz. per 100 sq. ft. Lawns
  • 1 pint per 1000 sq. ft
  • APPLICATION: Mix with water. Apply as a drenching spray

Espoma IT5 Iron Tone Bag, 5-Pound

Organic fertilizer & Iron supplement

  • Fast acting iron supplement
  • Turns yellow to green naturally
  • Will not stain concrete surfaces

For Use on:

For lawns, flowers, vegetables, evergreen & ornamental shrubs, berries, citrus, shade, ornamental & fruit trees.

When to use:

Early Spring, or any time during the growing season where iron chlorosis (yellow leaves) exists.

Monterey LG7115 Dr Soil Acidifier Granules Iron and Elemental Sulfur Acidic Fertilizer, 7 lb

Monterey

Based on 443 reviews Check latest price

Product description

Dr. Iron Soil Acidifier.Monterey Dr. Iron is designed to help correct iron deficiency in pale or yellowing plants. Made up of 22% iron and 55% sulfur, it is one of the most natural iron products on the market today. Use this product on lawns, flowers, ground-covers, vegetables, shrubs, and more. It will not stain or burn as some other iron products do. About Monterey: Monterey Lawn and Garden Products is a leading distributor of plant protection chemicals and fertilizers. We strive to offer home gardeners the same professional-grade technology available to the agricultural industry. Our growing line of products provide economical and effective solutions to yard and garden problems and are properly registered and labeled to be sold to and used by the home gardener.

  • Corrects Iron deficiency - when your garden or lawn is yellowing in color, that's a sign of an iron deficiency. Dr. Iron helps to correct this deficiency. The product is made up of 22% iron and 55% sulfur.
  • Non-staining - Dr. Iron is applied in the oxide form, so it will not stain concrete sidewalks, driveways, patios, etc. Until it has been in contact with soil moisture and converts to the sulfate form.
  • Great for a variety of uses - use this product on turf, flowers, vegetables, ground-covers, shrubs, and more. The combination of iron and sulfur makes application and plant uptake easy.
  • Reduce soil pH - Dr. Iron reduces soil pH and won't stain or burn like other iron products. It can be used on turf, flowers, shrubs, and more. It can be used anywhere in the garden where plants are pale or yellowing.
  • Organic gardening - Dr. Iron is OMRI listed and approved for organic gardening. Omari, the organic materials Review Institute, determines whether or not a product Qualifies as organic under the usa's national organic program.

User questions & answers

Question: Can i use dr iron for bonsai trees ? in special a boungaville with iron deficiency
Answer: Solo
Question: OK, stupid question: since this product has sulfur, does it rid the lawn of chiggers
Answer: I had the same thing. Brown, dried-crisp was taking over the leaf, slowly. It was pale green to yellowish. I snipped off the worst leaves. I gave it tomato-tone fertilizer and fish emulsion. After a week, it was on the right track. My guess i sit was deficient in too many things because the pH is too high (7.2 pH). Try a little Miracle Grow if you must. Rich
Question: Eddha content
Answer: Not sure about it for roses. I used it as an amendment to my soil for established plants.
Question: Is it ok to use on blueberry plants, raspberry plants, and cherry trees
Answer: No !!! Avoid adding any fertilizers now , grass is resilient it will come back , let in grow , most importantly water it deeply , scattering sugar can help feed the microbes , but you don't need iron

Product features

Monterey Dr. Iron

When your garden or lawn is yellowing in color, that's a sign of an iron deficiency. Dr. Iron helps to correct this deficiency. The product is made up of 22% iron and 55% sulfur.

This product is designed for use on turf, flowers, vegetables, ground-covers, shrubs, and more. The combination of iron and sulfur makes application and plant uptake easy.

LawnStar Chelated Liquid Iron (32 OZ) for Plants - Multi-Purpose, Suitable for Lawn, Flowers, Shrubs, Trees - Treats Iron Deficiency, Root Damage & Color Distortion – EDTA-Free, American Made

Based on 1 reviews Check latest price
  • REVITALIZE YOUR FLOWERS & LAWN: Are your flowers, vegetables, shrubs, trees and lawn beginning to look like they’re losing their will? Even worse, are they past that point and overrun with yellowing and dormancy already? Iron deficiency is a common cause of these lacklustre symptoms. Thankfully, LawnStar Chelated Liquid Iron (CLI) treats these symptoms at their core, helping restore and revitalize your garden back to its former state!
  • RESTORES A HEALTHY, DEEP GREEN VIBRANCY: Iron is a nutrient that plants rely on for many vital functions; metabolism, chlorophyll production, and nitrogen fixing to name a few. Once applied, LawnStar CLI sends a 6% highly-bioavailable troop of these nutrients right to your plants base, that in-turn immediately get to work on reversing the all-so-common leaf chlorosis that causes an unsightly yellowing of leaves--a precursor to a plants eventual death if left untreated.
  • STRENGTHENS ROOT DEVELOPMENT & STRESS TOLERANCE: LawnStar CLI doesn’t just restore a natural vibrance and color into your plants... It promotes stronger root development, builds a stronger, stabler foundation, and improves stress tolerance as a result!
  • SUGAR-BASED CHELATOR, FREE FROM EDTA: Your safety is our priority. Unfortunately, it’s often an afterthought in the world of gardening products. It’s one of the reasons we continually innovate and develop new technologies, formulating solutions that not only harness more effective results, but safer ones too.
  • THE ORIGINAL LAWNSTAR GUARANTEE: We get it... Trying new things can be tough. That’s why we take all of the risk for you! Buy it, try it, and if you aren’t thrilled with the results you get from using one of our products, simply contacts us within 30 days of purchase and we’ll process a no-questions-asked return + refund.

User questions & answers

Question: Can we use this product with the easy flow master system
Answer: I don't see why not.
Question: Is it better to use a hose end sprayer or pump sprayer
Answer: It is not labelled for such use. The sulphur in the iron is used as a micronutrient for lawns
Question: Can this be sprayed in fruit trees while the tree is bearing fruit? Will it scar the fruit
Answer: Unknown-sorry! Sounds like a question for the manufacturer!
Question: What is the analysis of this product? i’m assuming no n-p-k, but %fe
Answer: Heck yes! I use it on my citrus trees in pots with no issues! Planning on in the yard for trees and plants you mentioned too!

Product features

PLANT SURVIVAL 101: IRON IS ESSENTIAL

Problem solvers all across America are using Chelated Liquid Iron to overcome an issue which affects thousands of lawns, shrubs and trees every single day.

With LawnStar 6% CLI, you don’t need to pay for a professional, because you’ve got the commercial-grade solution right here in your hands.

If you listen closely, your yellow-dotted leafy neighbours are whispering, “save me”. They want their life back and they want to make you proud of your lawn again.

We’re saying LawnStar Chelated Liquid Iron may just be their salvation. Luckily for you, it’s an inexpensive treatment, and oh-so-easy to apply too.

Restores Color

Plants rely on iron for chlorophyll production. Without it, the plant isn't able to properly photosynthesise. This is what makes our plants green, and why a supply of highly bioavailable iron is imperative.

Stable in Highly Alkaline Soil (Up to 9.5pH)

High alkaline soil is the leading cause of iron deficiency. CLI’s sugar chelator ensures peak stability when other liquid irons don’t.

EDTA Free

LawnStar CLI utilises sodium glucoheptonate, a sugar-based chelating agent in lieu of EDTA or other traditional chelating agents. Not only is it more efficient and more stable, but safer too.

For Lawns

Does your lawn have mottled yellow areas? Iron deficiency (also known as Iron Chlorosis) is common in lawns. After using CLI on their lawns, people note a visibly healthier, greener, more vibrant appearance.

For Flowers

Plants depend on iron for their ‘big-three’ processes, Chlorophyll production, Nitrogen fixation and metabolism. CLI works from the root to get these processes working optimally.

For Shrubs

To spot iron deficiency in shrubs, you’ll want to observe for leaves with yellowing coats and dark green stems. It doesn’t matter how affected your shrubs are, this solution will fight to restore their natural order.

For Trees

Trees are the cornerstone of any exciting garden. Trees have the deepest roots so if there’s anything preventing their soil from providing iron, CLI is exactly what they need!

VPG Ferti-Lome Iron Liquid Plant Food

VPG

Based on 147 reviews Check latest price

Product description

Ferti-Lome Chelated Liquid Iron and Other Micro Nutrients is a fast, simple, and thrifty way to combat iron deficiency in lawns, shrubs, citrus, potted plants, trees, vegetables, and flowers. This chelated iron spray filled with nutrients should not replace your regular fertilizer. Instead Ferti-Lome Chelated Liquid Iron and Other Micro Nutrients should be used to correct the plant's nutritional deficiencies (iron, zinc, copper, and manganese).

  • Sold on Amazon

Iron Chelate 1 Lb - Water Soluble - Carl Pool Fertilizers

Carl Pool

Based on 229 reviews Check latest price

Product description

Carl Pool's Iron Chelate is the most effective chelate available to reduce chlorosis and promote stronger, healthier plants. Contains Iron DTPA 11%. Good for use on Azaleas, Camellias, Gardenias, Hibiscus, Holly, Pyracantha, Roses, Mums, Carnations, Gladiolas, Petunias, Trees, Shrubs, Fruit Trees, Vegetables, Citrus, Turf, Field Crops, and many other types of plants. Water soluble formula quickly mixes with water.

  • Feeds Through Roots and Leaves
  • Easy to Use, Just Add Water
  • Effective in Reducing Chlorosis in Plants and Turf

User questions & answers

Question: Is lead an ingredient
Answer: Yes
Question: How long does it usually take after using this product till my leaves start to turn green again
Answer: Either way, as long as you apply it, for my iron deficient lawn I added 32oz on 2500 sq feet first application, then 2 weeks later 16oz, then 8oz a week later, for a month, and from now on 8oz every other week. I add it to my hose sprayer with Urban Farm Liquid Lawn.
Question: Is it organic
Answer: Yes ma'am. I spray on flower and plants plus deep water them
Question: which chelating agent is is? edta, dtps, eddha
Answer: 6%

Botanicare HGC732110 Cal-Mag Plus, A Calcium, Magnesium, And Iron Plant Supplement, Corrects Common Plant Deficiencies, Add To Water Or Use As A Spray, 2-0-0 NPK, Quart

Botanicare

Based on 9 reviews Check latest price

Product description

Supplement your existing nutrient programs in reverse osmosis water, or when growing in soil or coco coir-based media, to compensate for a natural calcium draw with Botanicare Cal-Mag Plus. Formulated to correct common deficiencies, Botanicare Cal-Mag Plus is a highly fortified calcium, magnesium, and iron plant supplement. It contains a 2-0-0 NPK and can be mixed in with regular waterings or applied as a foliar spray to further enhance growth.

  • Highly fortified calcium, magnesium, and iron plant supplement formulated to correct common deficiencies
  • Supplement your existing nutrient program with Cal-Mag Plus
  • To Use: Mix well and use with every watering, as needed, for enhanced growth apply as a foliar spray
  • For use in containers, coco, hydrogardens, and when growing in soil
  • Contains formulation of 2-0-0 NPK

User questions & answers

Question: Can this be used for Tomatoes, Blossom end rot
Answer: Yes, this works well with Tomatoes.
Question: How much will this make
Answer: Mixed at 3ml per gallon it will make 320 gallons. Mixed at 5ml per gallon it will make 192 gallons.
Question: Is this carbonate based
Answer: Calcium nitrate, magnesium nitrate and iron EDTA
Question: Can this be used for tomatoes
Answer: There’s literally a tomato on the bottle.

Product features

About Botanicare

Botanicare launched its premium products to hydroponic growers in 1996. Today, our research-driven nutrients, supplements, trays, reservoirs and grow media are top-sellers in the hydroponic gardening industry. Botanicare is headquartered in Chandler, AZ, a suburb of Phoenix.

GEMPLER'S Liquid Iron Supplement for Plants – Commercial Grade Chelated Iron for Trees, Shrubs, Plants, Crops - 1 Gallon

Based on 42 reviews Check latest price

Product description





Iron chlorosis is caused by the lack of iron in the soil and/or your plants. This supplement immediately provides iron to your plants and remains in the soil for extended feeding. Compatible with most tank mixes of fertilizers or pesticides.

TURF: Mix 5 - 10 gallons of liquid iron for plants with enough water to cover one acre for turf application.

ROOT FEEDING TREES: For root feeding trees and shrubs, mix 4 oz. per inch of trunk diameter with 5 - 10 gallons of water and pour or inject around the drip line.

FOLIAR: Use 1 gallon in 64 gallons water for foliar applications.

This is a 1 gallon container, 4.7% iron oxide.

  • Get healthy plants when there’s an iron deficiency in your soil
  • Corrects Iron deficiency in trees, lawns vegetables, flowers and shrubs
  • Promotes growth and dark green color
  • Provides iron that’s immediately available to your plants and remains in the soil for extended feeding

User questions & answers

Question: how many square feet will this cover for lawns? what would the ratio be set to for use with a hose end sprayer
Answer: There's no lead listed on the label. Just 11% Chelate Iron.
Question: How much and how often can this be applied to the lawn
Answer: If you spray leaves as directed, results in 23 to 48 hours, If you use soil application it takes much longer because the iron chelate has to travel up the roots thru stems to get to the leaves. Spraying the leaves directly appears to have almost instant results. I prefer spraying in early morn or late evening.
Question: Does this product stain house wood siding or concrete
Answer: No, but I use it on organic fruit trees and it doesn't harm the tree or the fruit. This is an excellent product for turning those yellow leaves back to a bright green. Apply 1 teaspoon per two feet of plant height.
Question: what is % of chelated iron
Answer: per guaranteed analysis on label: Iron 11.00% derived from Iron DTPA

CalMag + Iron Liquid Plant Supplement Quart (32 oz) Blue Planet Nutrients | Calcium Magnesium Iron for All Plants & Gardens | Prevents & Corrects Blossom End Rot | Vegetables Fruits Flowers Herbs

Based on 1 reviews Check latest price
  • CalMag with Iron supplement is used for plants that require elevated levels of calcium and magnesium to reach their fullest potential and is excellent at preventing and correcting blossom end rot
  • This product helps strengthen cell walls resulting in stronger plant structures and greater overall health
  • Designed for use in all hydroponic systems, aeroponics, coco-coir, all soil-less mediums such as vermiculite, perlite, and in soil
  • High-grade, Concentrated Formula.Blue Planet Nutrients uses only the highest quality ingredients in our hand-crafted nutrient formulas.
  • Proven results across the internet! See why everyone is raving about Blue Planet Nutrients!

User questions & answers

Question: How does this compare to botanicare calmag+? analysis is not quite as good, plus botanicare has aminos and other stuff
Answer: If you’re looking for cal/mag this product works perfect. If you want cal/mag with other additives then go with botanicare
Question: can you use this in soil
Answer: Yes, this can be used in soil and in every type of garden. Thanks!
Question: Is this just as good as cal mag
Answer: Yes and you will find the blue planet nutrients make a quality product for the lowest cost to the consumer I buy and use their whole line and couldn’t be happier
Question: Can you spray this product directly on the leaves
Answer: Yes. We recommend .5 to 1ml per gallon sprayed on the underside of the leaves. Be careful overspray doesn't hit your light if growing indoors.

Product features

For All Plants & Gardens

Blue Planet Nutrients Liquid CalMag with Iron Supplement is a safe formula for use in any type of garden for all varieties of plants. Our concentrated formula will help prevent and correct common issues seen in a variety of plants including vegetables, fruits, flowers, trees, and even medicinal. It can also be added to a regular feed regimen to increase plant vitality & crop quality & quantity.

Prevents & Corrects Blossom End Rot & Upward Leaf Curl

Prevent & correct blossom end rot, which is commonly found in crops lacking all of the essential nutrients needed for healthy growth. Blossom end rot is when the blossom end of your vegetables shrink and decay before the fruit/vegetable ripens. Another common issue seen in plants is upward leaf curl, which is apparent when the edges of leaves are misshapen & curl up/into themselves. Use BPN Liquid CalMag with Iron to prevent & fix these issues so your plants will reach their fullest potential.

Grow More GL556546 6546 EDDHA Iron Chelate, 1-Pound, Purple

Grow More

Based on 173 reviews Check latest price

Product description

Water-soluble iron supplement for fast uptake by plants

  • Water-soluble iron supplement for fast uptake by plants
  • EDDHA chelation means far more absorbed by plants than other iron sources
  • Very effective by foliar feeding, also excellent by soil drench
  • 1 teaspoon (about 2. 7 grams) per gallon yields approximately 42 ppm Iron concentration
  • General Dosage: 1 teaspoon/gallon

User questions & answers

Question: Can this be applied to a lawn
Answer: 8 oz setting walk quickly, my yard is 15,000 square feet did all of it and then some. Key is to walk quickly and apply it evenly.
Question: how much of this do I need to treat a large three clump river birch with chlorosis? Current ph is 7. I plan to drill holes and put it into the ground
Answer: You can apply about once a month. I put it in my Ortho hose end sprayer, set it at 8oz per gallon and walked quickly spraying. We had a grad party in mid July and the lawn was a nice dark green, we had plenty of rain. Keep it of any concrete areas it will stain and take a bit to remove. Good stuff.
Question: Can this product be used in an Aquaonic system? Is it really red when added to water? Will the red color leave only when the iron is depleted
Answer: I only know that it will stain concrete. It did not help my shrubs at all.
Question: What is the color of solution when dissolve this powder into water? Will it not be precipitated again in solution
Answer: 4.7% iron oxide

Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage – 1 Quart

Based on 823 reviews Check latest price
  • RICH SOURCE OF CALCIUM MAGNESIUM & CHELATED IRON

User questions & answers

Question: Can i apply in october to a little gem magnolia tree
Answer: Absolutely: You are feeding the microbes in the soil, not the tree. It will take months for the microbes to brake down and make nutrients available to the tree . When the tree needs nutrients in the spring. It's there. Good luck! Happy growth
Question: What is the percentage of calcium, mag, and iron
Answer: Calcium 2.0%, Magnesium 1.2%, Iron 0.1%
Question: would this be a good rooting hormone
Answer: I do not believe so. Humboldts product is good for existing root structure, and not for promoting new growth. Go to Plant section of Home depot or lowes and get rooting hormone powder if stimulating root growth is what you are after. Jim
Question: I want to use this as a foliar spray to cure some deficiencies in my dahlias. How often do I need to apply this product? Once, every week
Answer: Every other day at dusk

Product features

Humboldts Secret CalMag & Iron

CalMag & Iron contains an exact balance of calcium, magnesium and iron.

Supplemental CalMag & Iron is highly recommended for plants grown with coco coir medium or reverse osmosis water.

Quality Ingredients

CalMag & Iron contains an exact balance of calcium, magnesium and iron that is trusted by thousands of growers.

Compatible for All Grow Mediums

The formula is compatible for all grow mediums. Usage rate is between 2-5mL/gallon (5ml is approx. 1 teaspoon) throughout the entire grow cycle. You can use CalMag & Iron either as a foliar spray or apply directly to the soil/rootzone. Humboldts Secret CalMag & Iron can be used with every watering as needed.

A message from the Founder - Ben

"From grower to nutrient manufacturer, my goal is to make high quality nutrients and deliver them at affordable prices so that you can get maximum results and succeed as growers."

Grow More 7450 8-Ounce Organic Iron Chelate Concentrate

Based on 311 reviews Check latest price

Product description

Grow more 7450 8-ounce organic iron chelate concentrate

  • Chelated Iron
  • For outdoor and indoor plants
  • Organic based
  • Helps stop yellow leaf
  • Soil foliage applied

User questions & answers

Question: I have a very large boxwood maple. i know i need to use this because of clay soil but it does not say how often for a large tree- at least 20ft tall
Answer: Other products would be more cost effective and less messy to use. EDDHA stains. Use a fertilizer formulated for your area with iron and sulphur. Ag stores like IFA carry it.
Question: I have potted Gardenia plants and the leaves are turning yellow. Is this a good product for Gardenias
Answer: I used 4 of the measuring spoons of the product on a cottonwood with approx 6" diameter. I diluted it in 5 gallons of water followed by filling the water well. I did this 3 times over a period of about 6 weeks. The tree looks great.
Question: Is this in powder or granular form
Answer: Yes
Question: which chelating agent is is? edta, eddha
Answer: Eddha powder is red, remains red and dissolves completely in water. Great product.

LawnStar Chelated Liquid Iron (1 Gallon) for Plants - Multi-Purpose, Suitable for Lawn, Flowers, Shrubs, Trees - Treats Iron Deficiency, Root Damage & Color Distortion – EDTA-Free, American Made

Based on 324 reviews Check latest price
  • REVITALIZE YOUR FLOWERS & LAWN: Are your flowers, vegetables, shrubs, trees and lawn beginning to look like they’re losing their will? Even worse, are they past that point and overrun with yellowing and dormancy already? Iron deficiency is a common cause of these lacklustre symptoms. Thankfully, LawnStar Chelated Liquid Iron (CLI) treats these symptoms at their core, helping restore and revitalize your garden back to its former state!
  • RESTORES A HEALTHY, DEEP GREEN VIBRANCY: Iron is a nutrient that plants rely on for many vital functions; metabolism, chlorophyll production, and nitrogen fixing to name a few. Once applied, LawnStar CLI sends a 6% highly-bioavailable troop of these nutrients right to your plants base, that in-turn immediately get to work on reversing the all-so-common leaf chlorosis that causes an unsightly yellowing of leaves--a precursor to a plants eventual death if left untreated.
  • STRENGTHENS ROOT DEVELOPMENT & STRESS TOLERANCE: LawnStar CLI doesn’t just restore a natural vibrance and color into your plants... It promotes stronger root development, builds a stronger, stabler foundation, and improves stress tolerance as a result!
  • SUGAR-BASED CHELATOR, FREE FROM EDTA: Your safety is our priority. Unfortunately, it’s often an afterthought in the world of gardening products. It’s one of the reasons we continually innovate and develop new technologies, formulating solutions that not only harness more effective results, but safer ones too.
  • THE ORIGINAL LAWNSTAR GUARANTEE: We get it... Trying new things can be tough. That’s why we take all of the risk for you! Buy it, try it, and if you aren’t thrilled with the results you get from using one of our products, simply contacts us within 30 days of purchase and we’ll process a no-questions-asked return + refund.

User questions & answers

Question: Can this be applied with a backpack sprayer
Answer: If your tree is 20 feet tall, it is probably doing well. Seriously, because of the complexity of soil chemistry, it is better to apply as foliar spray. Keep it dilute and be careful: Too much is bad. One thousand parts per million is the upper limit of dissolved salts. One-tenth of one percent. It is best to use a combination material such as Miracle Grow, unless you know for sure that it is iron deficiency. Soil pH is the key factor.
Question: What is the analysis of this product? i’m assuming no n-p-k, but %fe
Answer: Yes, but...yellow leaves is a common problem and hard to identify the true cause. I posted you this. It might give you better understanding of what might really be going on. https://www.gardeningknowhow.com/edible/helping-a-gardenia-bush-with-yellow-leaves.htm
Question: does the product expire
Answer: There is a mixture of light powder and small granules.
Question: My soil tests 9. if i use this product fir my trees / shrubs, it will bring the ph level down after how many applications
Answer: Grow More EDTA's are chelated with Ethylene diamine tetra acetic acid are recognized worldwide by leading agricultural producers, university research centers and testing laboratories as the most powerful chelating agents available. For soil or foliar application at rates as low as 1 Lb per acre or 1 Kg per hectare.

Product features

PLANT SURVIVAL 101: IRON IS ESSENTIAL

Problem solvers all across America are using Chelated Liquid Iron to overcome an issue which affects thousands of lawns, shrubs and trees every single day.

With LawnStar 6% CLI, you don’t need to pay for a professional, because you’ve got the commercial-grade solution right here in your hands.

If you listen closely, your yellow-dotted leafy neighbours are whispering, “save me”. They want their life back and they want to make you proud of your lawn again. We’re saying LawnStar Chelated Liquid Iron may just be their salvation. Luckily for you, it’s an inexpensive treatment, and oh-so-easy to apply too.

Restores Color

Plants rely on iron for chlorophyll production. Without it, the plant isn't able to properly photosynthesise. This is what makes our plants green, and why a supply of highly bioavailable iron is imperative.

Stable in Highly Alkaline Soil (Up to 9.5pH)

High alkaline soil is the leading cause of iron deficiency. CLI’s sugar chelator ensures peak stability when other liquid irons don’t.

EDTA Free

LawnStar CLI utilises sodium glucoheptonate, a sugar-based chelating agent in lieu of EDTA or other traditional chelating agents. Not only is it more efficient and more stable, but safer too.

For Lawns

Does your lawn have mottled yellow areas? Iron deficiency (also known as Iron Chlorosis) is common in lawns. After using CLI on their lawns, people note a visibly healthier, greener, more vibrant appearance.

For Flowers

Plants depend on iron for their ‘big-three’ processes, Chlorophyll production, Nitrogen fixation and metabolism. CLI works from the root to get these processes working optimally.

For Shrubs

To spot iron deficiency in shrubs, you’ll want to observe for leaves with yellowing coats and dark green stems. It doesn’t matter how affected your shrubs are, this solution will fight to restore their natural order.

For Trees

Trees are the cornerstone of any exciting garden. Trees have the deepest roots so if there’s anything preventing their soil from providing iron, CLI is exactly what they need!

Bonide 037321002994 299 Liquid Iron Concentrate 32 Ounce Bottle, 1, LAWNGARD

Bonide

Based on 183 reviews Check latest price

Product description

Promotes vigorous growth and dark green color. Corrects iron deficiency. Use on turf, flowers, shrubs and trees. Contains chelated iron plus sulfur and micronutrients.

  • CONTAINS IRON - Iron is a vital nutrient required by plants to form chlorophyll. Chlorophyll is what gives plants their green color.
  • TURNS PLANTS FROM YELLOW TO GREEN - Our product contains nutrients that correct & help prevent plant yellowing. It's most effective when plants are growing rapidly & least effective when dormant or suffering from stress.
  • OUTDOOR USE - Liquid Iron + Micronutrients is designed for use on lawns, herbaceous plants, ornamental trees, & shrubs. Not intended for indoor use.
  • VERSATILE FORMULA - This product is compatible with most pesticides & fertilizers, with the exception of amine formulations & high phosphate fertilizers.
  • EASY TO APPLY - Liquid Iron can be applied as either a foliar spray or soil drench. Carefully read directions before use.
  • Turns plants from yellow to green
  • Use as a foliar spray or a soil drench
  • Corrects and prevents plant yellowing

User questions & answers

Question: How do you mix this for foliar application to be used on tomato plants
Answer: Yes, recommendation is tank sprayer
Question: Would this be okay to use on bougainvillea plant
Answer: No n-p-k. As the name describes, it is iron chelate, very safe. It will stain, however, so avoid getting it on buildings, sidewalks, and the like.
Question: Is this product a concentrate? If so, what is the ratio to water
Answer: Yes. The iron falls out of the solution and binds to form a solid.
Question: Is the iron chelated
Answer: The exact levels will depend upon surface area of desired coverage, soil type, etc... I will say that we saw improvement after the very 1st application.

Product features

Bonide Liquid Iron + Micronutrients

Iron is a vital nutrient required by plants to form chlorophyll. Chlorophyll is what gives plants their green color.

Our product contains nutrients that correct & help prevent plant yellowing. It's most effective when plants are growing rapidly & least effective when dormant or suffering from stress.

Designed for Outdoor Use

Liquid Iron + Micronutrients is designed for use on lawns, herbaceous plants, ornamental trees, & shrubs. Not intended for indoor use.

Liquid Iron can be applied as either a foliar spray or soil drench. Carefully read directions before use.

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