Plant Food

Plant food, also known as plant fertilizer, gives plants and soils a boost of nutrients to improve the overall health of the plant. Encourage root growth, produce more blooms and fruits, and help plants fight disease with plant food. Our selection of plant food covers many nutrients your garden may need, from potassium to iron, allowing you to select the nutrients your garden needs most.

1-24 of 70 results
5 out of 5 stars (1)
$13.54
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A water soluble fertilizer that is for acid loving plants including Azaleas, Hydrangeas, and Rhododendrons.
5 out of 5 stars (1)
$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.
4 out of 5 stars (1)
$15.55
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Multiple sizes available
A water soluble fertilizer for acid loving plants and shrubs like Rhododendrons, Camellias and Azaleas.
$18.06
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Multiple sizes available
A granular fertilizer for better growth, flavor and harvest by supplying all the nutrients to produce bigger Tomato's and Vegetables.
5 out of 5 stars (4)
$11.90
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Multiple sizes available
A specially formulated all-purpose plant food that helps promote bigger blooms and lush green foliage.
$75.25
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Multiple sizes available
A water soluble chelated micro-nutrients fertilizer that is compatible with fertilizers and pesticides for vegetable crops to golf courses.
$31.98
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Multiple sizes available
A fertilizer with micro-nutrients and slow release water insoluble Nitrogen to aid in growing bedding plants and perennials.
$13.41
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A plant food formulated to control, correct, and prevent minor element deficiencies on citrus, avocados, mangoes, tropical fruits and ornamentals.
3 out of 5 stars (2)
$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.
$13.61
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Highly effective plant food that is specifically formulated to control, treat, and prevent minor deficiencies on foliage and provides elements for the healthy growth of plants.
$21.43
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Multiple sizes available
An all-natural plant food which helps promote root development.
5 out of 5 stars (1)
$13.45
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A indoor plant 1-1-1 fertilizer in an easy to use foam formula for a once a week feeding.
$17.06
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A natural and organic seaweed extract, derived from Norwegian kelp, that is a liquid concentrate for organic gardening.
5 out of 5 stars (1)
$30.46
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An excellent palm tree food that keeps palms, cycads, and ferns, healthy and maintains the dark green color of trees.
$17.61
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A water soluble plant food created with a special wetting agent to help feed plants instantly.
5 out of 5 stars (1)
$18.50
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Multiple sizes available
A slow released fertilizer designed for use at planting time as well as for a maintenance fertilizer to maintain plants and landscapes.
$20.27
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A granular fertilizer for all vegetables and some fruits, tomatoes, cucumbers, eggplant, melons and peppers, and strawberries.
$17.22
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A 10-10-10 fertilizer that produces high quality vegetables and beautiful flowers with an easy-to-use, slow release formula that keeps working for up to 2 months.
$16.91
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An organic fertilizer that turns yellow leaves to the natural dark green color for lawns, flowers and shrubs.
$20.27
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A fertilizer for all Roses that will produce bigger, bolder and more beautiful flower blooms for all varieties of Rose bushes.
$23.16
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Multiple sizes available
An all-natural & organic greensand for organic gardening that feeds and conditions the soil with minerals and potash for flower bed gardens.
$12.92
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A granular fertilizer that feeds for the complete health and color of indoor and outdoor plants.
$65.25
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Iron based product designed to treat and prevent iron deficiency in all crops.
$17.74
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Multiple sizes available
A water soluble all-purpose 24-8-16 fertilizer that easily and instantly feeds plants, flowers, vegetables, shrubs and trees.

Important Plant Nutrients

Plants get the majority of their nutrients from the soil. Sometimes, the soil is deficient in some nutrients, or has an overabundance of another. Each imbalance affects plant growth, yield, aesthetics, and overall health. Plants have primary and secondary nutrient needs, as well as micronutrient needs, and it’s important to know what nutrients your plants need and why, so you are better able to diagnose plant problems and give your plants the necessary nutrients. Here is a list of important plant nutrients and how they affect your plants.

  • Nitrogen: Nitrogen is a primary plant nutrient. It is a major factor of growth and specific nitrogen need varies from plant to plant. Nitrogen is always in flux in the soil, so even a soil test doesn’t quite give an accurate picture of your soil’s nitrogen content, so looking at plant health is a better measure for nitrogen levels.
  • Phosphorus: Another primary nutrient, phosphorus (measured in phosphate in plant food products) promotes plant growth and root formation, and is essential for flowering and fruiting. Deficiency symptoms can include sparse leaf growth, darkened leaf color, and dull surfaces.
  • Potassium: The last of the primary nutrients, it is found as potash in plant products. It helps in photosynthesis, aids in disease resistance, and is important in fruit quality and quantity. Deficiencies can cause yellowing, scorching, and crinkling of leaves, and too much potassium can cause a salt imbalance in the soil.
  • Secondary Nutrients: Each secondary nutrient aids plants in a specific way, and deficiencies affect plants individually. Calcium aids in plant vigor and proper growth, Magnesium is an essential part of chlorophyll and photosynthesis, and Sulfur aids in protein production and is crucial for crop yield and quality.
  • Micronutrients: There are several micronutrients: Boron, chlorine, copper, iron, manganese, molybdenum, and zinc, and are called micro since they are needed in very small amounts. Even though they’re needed in much smaller amounts than other plant nutrients, they are just as important to plant health. Micronutrients aid in formation of cells, enzymes, sugars, plant structures, and are crucial to many plant processes.

Plant Nutrient Deficiencies

Nutrient deficiencies can manifest themselves in many ways, and many look similar or occur at the same time. One deficiency can cause another, and all plants will adapt to changes in soil nutrients differently. You may be able to tell your plant is struggling in its current soil by the following symptoms:

  • Stunted growth
  • Chlorosis (yellowing)
  • Interveinal chlorosis
  • Purple or red coloring
  • Necrosis

These symptoms can indicate nutrient deficiency, but you will have to do a bit more work to decode just what may be lacking in your soil. A soil test can give you the big picture of what your soil contains and what it needs.

Choosing Plant Food

There are an endless array of choices when it comes to plant food. While all aim to add nutrients or other benefits to the soil, each has a different goal. Some aid in overall soil health, like Neptune’s Harvest Organic Crab Shell which helps get rid of fungus and nematodes. Other products work for specific plants, like Fertilome Rose Food, and deliver plant-specific nutrients directly to the soil. Specific plant ailments can also be cured with plant food, like with Bonide Rot-Stop Tomato Blossom End Rot food. You can even choose specific plant nutrients to add directly to the soil for a certain effect, like Bonide Triple Super Phosphate for strong roots and hearty plant health. We carry any type of plant food you might need to create a healthy environment for your plants, giving them all the nutrients they need.

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