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Plant Fertilizers

Hydroponic fertilizers grow large plants in smaller areas. House and Garden Fertilizers have won many awards for the plants they produce. Horizen Hydroponics offers a wide variety of plant fertilizers including House and Garden, General Hydroponics, Botanicare and many more.

To read more on what fertilizer your plants need, read our Plant Fertilizer/Nutrient FAQ page.

Hydroponic Fertilizer
281 products

Organic Fertilizer
355 products

Fertilizer Additives
395 products

Foliar Spray
45 products

Outdoor Fertilizer
120 products

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Result pages: 12

General Hydroponics CaliMagic 16 oz	General Hydroponics CaliMagic 2.5 Gallon	General Hydroponics CaliMagic 6 Gallon

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Our price: $9.00 MRSP: $10.00 10% Savings	Our price: $82.00 MRSP: $90.00 9% Savings	Our price: $186.00 MRSP: $206.00 10% Savings
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General Hydroponics CaliMagic 8 oz	General Hydroponics CaliMagic Gallon	General Hydroponics CaliMagic Qt

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Our price: $7.25 MRSP: $8.00 9% Savings	Our price: $37.50 MRSP: $40.50 7% Savings	Our price: $14.50 MRSP: $16.00 9% Savings
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General Hydroponics Flora Nectar BlueBerry Dream 2.5 Gallon	General Hydroponics Flora Nectar BlueBerry Dream 6 Gallon	General Hydroponics Flora Nectar BlueBerry Dream Gallon

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Our price: $122.00 MRSP: $133.00 8% Savings	Our price: $237.00 MRSP: $263.00 10% Savings	Our price: $55.00 MRSP: $59.00 7% Savings
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General Hydroponics Flora Nectar BlueBerry Dream Qt	General Hydroponics Flora Nectar Coconut 2.5 Gallon	General Hydroponics Flora Nectar Coconut 6 Gallon

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Our price: $19.00 MRSP: $21.00 10% Savings	Our price: $120.00 MRSP: $132.30 9% Savings	Our price: $237.00 MRSP: $262.50 10% Savings
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General Hydroponics Flora Nectar Coconut Gallon	General Hydroponics Flora Nectar Coconut Qt	General Hydroponics Flora Nectar FruitNFusion 2.5 Gallon

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Our price: $53.00 MRSP: $58.80 10% Savings	Our price: $19.00 MRSP: $21.00 10% Savings	Our price: $121.00 MRSP: $133.00 9% Savings
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General Hydroponics Flora Nectar FruitNFusion Gallon	General Hydroponics Flora Nectar FruitNFusion Qt	General Hydroponics Flora Nectar Grape Expectations 2.5 Gallon

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Our price: $54.00 MRSP: $59.00 8% Savings	Our price: $19.00 MRSP: $21.00 10% Savings	Our price: $119.95 MRSP: $132.30 9% Savings
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General Hydroponics Flora Nectar Grape Expectations 6 Gallon	General Hydroponics Flora Nectar Grape Expectations Gallon	General Hydroponics Flora Nectar Grape Expectations Qt

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Our price: $237.00 MRSP: $262.50 10% Savings	Our price: $54.00 MRSP: $58.80 8% Savings	Our price: $19.00 MRSP: $21.00 10% Savings
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General Hydroponics Flora Nectar Pineapple Rush Gallon	General Hydroponics Flora Nectar Pineapple Rush Qt	General Hydroponics Flora Nectar Sugar Cane 2.5 Gallon

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Our price: $53.00 MRSP: $58.80 10% Savings	Our price: $19.00 MRSP: $21.00 10% Savings	Our price: $120.00 MRSP: $132.30 9% Savings
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General Hydroponics Flora Nectar Sugar Cane 6 Gallon	General Hydroponics Flora Nectar Sugar Cane Gallon	General Hydroponics Flora Nectar Sugar Cane Qt

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Our price: $237.00 MRSP: $262.50 10% Savings	Our price: $54.00 MRSP: $58.80 8% Savings	Our price: $19.00 MRSP: $21.00 10% Savings
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General Hydroponics FloraDuo A 16oz	General Hydroponics FloraDuo A 2.5 Gal	General Hydroponics FloraDuo A 6 Gal

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Our price: $9.50 MRSP: $10.50 10% Savings	Our price: $67.95 MRSP: $75.00 9% Savings	Our price: $135.00 MRSP: $150.00 10% Savings
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General Hydroponics FloraDuo A Gal	General Hydroponics FloraDuo A Qt	General Hydroponics FloraDuo B 16oz

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Our price: $30.95 MRSP: $34.00 9% Savings	Our price: $13.50 MRSP: $15.00 10% Savings	Our price: $9.50 MRSP: $10.50 10% Savings
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General Hydroponics FloraDuo B 2.5 Gal	General Hydroponics FloraDuo B 6 Gal	General Hydroponics FloraDuo B Gal

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Our price: $67.95 MRSP: $75.00 9% Savings	Our price: $135.00 MRSP: $150.00 10% Savings	Our price: $30.95 MRSP: $34.00 9% Savings
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General Hydroponics FloraDuo B Qt	General Hydroponics Floralicious Grow 2.5 Gallon	General Hydroponics Floralicious Grow Gallon

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Our price: $13.50 MRSP: $15.00 10% Savings	Our price: $167.00 MRSP: $184.00 9% Savings	Our price: $74.00 MRSP: $80.50 8% Savings
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General Hydroponics Floralicious Plus Gallon	General Organics BioBud 2.5 Gallon	General Organics BioBud 6 Gallon

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Our price: $193.00 MRSP: $213.00 9% Savings	Our price: $265.00 MRSP: $290.00 9% Savings	Our price: $530.00 MRSP: $580.00 9% Savings
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General Organics BioMarine 6 Gallon	General Organics BioRoot 2.5 Gallon	General Organics BioRoot 6 Gallon

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Our price: $189.00 MRSP: $210.00 10% Savings	Our price: $95.00 MRSP: $105.00 10% Savings	Our price: $190.00 MRSP: $210.00 10% Savings
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General Organics BioThrive Bloom 2.5 Gallon	General Organics BioThrive Bloom 6 Gallon	General Organics BioThrive Grow 2.5 Gal

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Our price: $99.95 MRSP: $110.00 9% Savings	Our price: $204.00 MRSP: $225.00 9% Savings	Our price: $99.95 MRSP: $111.00 10% Savings
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Result pages: 12

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