Plant Supplements

Often plants will need additional nutrients like nitrogen or iron to help the plant thrive. Our selection of plant supplements give plants the extra boost they need to grow healthy and lush. From flowers to crops, we have the products you need to encourage root growth and blooms. 

1-24 of 39 results
5 out of 5 stars (1)
$17.78
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Multiple sizes available
An excellent source of Potassium, which aids plants in forming healthy stems, roots and tuber growth.
5 out of 5 stars (7)
$17.58
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Multiple sizes available
It reduces the alkaline in soil and supplies Iron, Zinc, Sulfur, Magnesium and Copper that are vital to acid loving plants as Roses, Azaleas, Rhododendron, fruit trees and vegetables.
5 out of 5 stars (17)
$13.67
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Multiple sizes available
A chelated nutritional spray formulated to correct iron deficiency (yellowing of foliage) and other nutrient deficiencies.
5 out of 5 stars (4)
$13.66
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A plant supplement that corrects and prevents yellowing of foliage caused by iron deficiency of flowers, shrubs, trees, vegetables, and lawns.
5 out of 5 stars (3)
$66.69
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Multiple sizes available
Water soluble granules that is used to prevent and correct iron deficiencies in trees, shrubs, and other plants.
5 out of 5 stars (2)
$14.08
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Multiple sizes available
A plant supplement that corrects calcium deficiency to control blossom end rot on tomatoes, cucumbers, melons, peppers, and other vegetables.
$19.87
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Multiple sizes available
Provides a readily available form of phosphorous. Stimulates root development and larger blooms. Use on flowers, fruits, vegetables.
$13.49
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Multiple sizes available
A single pack water soluble fertilizer for one time use for the watering can in each bag that will grow beautiful plants.
$115.92
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A professional liquid plant supplement that contains the ideal balance of all essential micro-nutrients readily available as chelates for greenhouses.
5 out of 5 stars (1)
$18.79
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Multiple sizes available
An organic fertilizer that is designed for low pH and delivers nitrogen for heavy feeding shrubs that contains beneficial micro-organisms.
5 out of 5 stars (1)
$18.22
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Multiple sizes available
A supplement that prevents Blossom End Rot for tomatoes and peppers caused by the lack of calcium.
$16.99
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Multiple sizes available
Corrects calcium deficiency in tomatoes, peppers, apples and other crops.
$75.25
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A water soluble chelated micro-nutrients fertilizer that is compatible with fertilizers and pesticides for vegetable crops to golf courses.
$18.50
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Pennington Epsom Salt is the way to give your plants the nutrients to thrive.
5 out of 5 stars (1)
$18.81
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Multiple sizes available
A mineral supplement that will quickly turn plants from yellow to green, and is great for use in lawns, trees, flowers, shrubs, and vegetables.
$19.49
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A soil amendment that aids in the uptake of micro-nutrients to vegetable, flowers, indoor plants and lawns.
$20.11
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Multiple sizes available
Contains Magnesium Sulfate that is a key nutrient for plants that is absorbed through the roots to help produce chlorophyll and promotes blooms in roses and other flowering plants.
$20.31
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A 2 to 1 ratio of calcium to magnesium for optimal plant growth of tissue and roots.
$15.75
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Multiple sizes available
Helps stop blossom end rot on Tomatoes and setting of fruit and correcting calcium deficiencies with a ready-to-use (RTU) spray bottle.
$65.25
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Iron based product designed to treat and prevent iron deficiency in all crops.
$21.88
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A liquid plant supplement with natural calcium, magnesium and humic acid which is horticulturally designed for indoor and outdoor plants, hydroponics and soil gardening.
$22.62
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A 100% soluble iron that provides quick green-up of grasses and other plants, without causing harmful "surge growth" often caused by regular nitrogen fertilizers.
$22.74
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An organic fertilizer formulated as a slightly earthy to a sharp yeasty sourness in order to provide vigorous plant growth.
$18.80
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Multiple sizes available
Corrects calcium deficiency in tomatoes, peppers, apples and other crops.

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