Plant Supplements

Items 1 - 24 (of 50 Total) Sort By:
Ferti-Lome Soil Acidifier Plus Iron
5 out of 5 stars (3)
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Designed to help reduce alkalinity in alkaline soils while supplying trace elements vital to acid loving plants such as Roses, Gardenias, Azaleas, Holly, Rhododendron, Magnolias, fruit trees and vegetables.

Ferti-Lome Chelated Liquid Iron and Other Micro Nutrients
5 out of 5 stars (9)
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A chelated nutritional spray formulated to correct iron deficiency (yellowing of foliage) and other nutrient deficiencies.

Hi-Yield Muriate of Potash 0-0-60
5 out of 5 stars (1)
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An excellent source of Potassium, which aids plants in forming healthy stems, roots and tuber growth.

Hi-Yield Aluminum Sulfate
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This acidifies the soil to lower the pH for a acid soil condition for Azaleas, Rhododendrons and Gardenias.

Hi-Yield Super Phosphate 0-18-0
5 out of 5 stars (1)
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This Phosphorus will strengthen stems and increases blooms while enhancing growth and color of the plants.

Bonide Rot-Stop Tomato Blossom End Rot
5 out of 5 stars (2)
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Nutritional calcium corrects calcium deficiency. Controls blossom end rot on tomatoes, cucumbers, melons, peppers, and other vegetables.

Superthrive - The Original Vitamin Solution Enhanced with Kelp
4.5 out of 5 stars (2)
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Vitamin Solution use for transplanting and maintenance for all agriculture needs. Comes in 4 oz, pint, quart and gallon.

Peters Excel 15-5-15 Cal-Mag Special Fertilizer
5 out of 5 stars (1)
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A water soluble fertilizer that is for potted, bedding and cut flowers where additional calcium and magnesium are required.

Southern Ag Palm Nutritional Spray
5 out of 5 stars (1)
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A nutritional spray that contains 4 essential nutrients for correcting and preventing deficiencies in palms that cause damage.

Southern Ag STOP Blossom-End Rot of Tomatoes
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Prevents tomatoes rot due to Calcium deficiency. Corrects Calcium deficiency.

Bonide Triple Super Phosphate 0-45-0
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Provides a readily available form of phosphorous. Stimulates root development and larger blooms. Use on flowers, fruits, vegetables.

Bailey Nurseries Color Me Blue
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Bailey Nurseries and Bonide have teamed up to bring you an all natural way to acidify the soil to turn Hydrangeas blue.

Hi-Yield Magnesium Sulfate
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Contains a soluble source of Magnesium that is readily available to aid in correcting plant Chlorosis.

Espoma Organic Vermiculite
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Vermiculite aerates compacted soil so plants can absorb more nutrients with the loosened soil and keeping it well-drained and healthy.

FoxFarm Tiger Bloom Liquid Plant Food 2-8-4
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A liquid fertilizer with micro-nutrients to keep plants healthy and robust for the biggest blooms.

Grow More 5-50-17 Hawaiian Bud & Bloom Fertilizer
4 out of 5 stars (1)
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A fertilizer that enhances and help tropical and near-tropical plants to look healthy, establish faster and have a bigger bloom.

Bonide Aluminum Sulfate
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Lowers soil pH for acid loving plants like azaleas, camellias, gardenias, hemlock, holly, cedar, blueberry, rhododendron, dogwood...turns hydrangeas blue.

Grow More Seaweed Extract
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An organic Kelp fertilizer that offers enhanced root development, more robust growth and increased resistance to environmental stress and minimized frost damage.

Monterey Foli-Cal
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Corrects calcium deficiency in tomatoes, peppers, apples and other crops.

Dynamite Flower & Vegetable Plant Food 13-13-13
5 out of 5 stars (2)
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An all-purpose fertilizer that is environment-friendly and only needs to be applied once per season.

Grow More Hydrangea Blueing Formula
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Turn pink hydrangeas to blue with this special solution.

Espoma Garden Lime
5 out of 5 stars (1)
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An organic lime supplement, formulated with 100 percent organic ingredients that contains no fillers and sledges.

Grow More Sea Grow All Purpose Plant Food 16-16-16
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A water soluble all-purpose fertilizer for the growth cycle in flowering plants and plant feeding in the garden.

Hi-Yield Calcium Nitrate
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A calcium nitrate that gives tomatoes and peppers able to fight against Blossom End Rot.


Plant supplements consist of specific nutrients designed to keep your plants healthy and thriving. Just like humans take vitamin supplements to fill in gaps their food can’t fill, plant supplements provide the supplemental nutrition the soil doesn’t supply. We have a large variety of plant food that will be a welcome addition to your lawn and garden supplies to keep plants looking beautiful and healthy.

About Plant Supplements

It can be confusing to sift through the many products available to add to your plants. From fertilizer to plant food, plant supplements, and even plant hormones, it all seems very similar yet each product is different. Plants need many types of nutrients. Macronutrients are the nutrients plants need in the largest amounts (nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur), which a general fertilizer or plant food will provide. Micronutrients are nutrients needed in much smaller amounts, but are still essential to plant growth, and include iron, chlorine, zinc, molybdenum, boron, manganese, copper, sodium, and cobalt.

Plant supplements can be one or several nutrients that your plant is missing. While the nutrients cross over in fertilizer and plant food categories, it is easiest to think of supplements as a more focused application of a nutrient to get a specific result, heal a deficiency or disease, or for aesthetic purposes, while fertilizer can be seen as a more general nutrient application. For example, adding calcium to tomatoes or peppers will cure or prevent blossom end rot. Adding iron chelate to the soil will help to cure yellowing leaves on citrus, and aluminum sulfate will help acid-loving plants to thrive and hydrangeas to bloom blue. 

How To Use Plant Supplements

Since plant supplements tend to focus on symptoms of the plant, it is important to understand your plant’s needs, possible diseases, and how nutrient deficiencies will manifest themselves in your plant, like yellowed leaves or low fruit/flower yield. Each product is specifically designed for certain plants or plant problems. It is very important to read all labels carefully before use to get the best possible results, and to ensure you do not damage your plants by using the wrong product or by applying the product incorrectly.

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