Plant Nutrition & Health

A complete range of plant nutrition and health products designed to support robust growth and maximize yields. Our curated selection offers reliable solutions for every stage of plant development.

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Terpenez (20 L / 5 gal)

Q112717
  • Organic terpene enhancer.
  • Boosts terpenoid profiles.
  • Increases the overall aromatic experience.
  • Formulated with the finest all-organic botanical inputs currently available.
  • Assists the plant with processes associated with oil and resin production.
  • Recommended to be applied during flush.
  • Can also be used to aid in the removal of residual nutrient salts.
  • Blended in California, USA.
  • 20 liter (5 gallon) bottle.
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GH 6 Gallon Container Spigot

Q101276
"

For use with all General Hydroponics

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Grower's Edge Universal Cell Phone Illuminated Microscope w/ Clip - 60x

Q102112

This Grower’s Edge® Universal Cell Phone Illuminated Microscope with Clip can be clipped onto any smartphone or mobile phone that is equipped with a camera. Images can be taken with your camera and stored in your smartphone’s photo library. Great for record keeping and photo sharing. Battery operated (included). 60x magnification. 2 light settings: high and low. On/off switch. Includes storage case.

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Terpinator 15 Gallon

Q102490

Terpinator® is the original terpene and resin enhancer. Formulated to help provide the building blocks for secondary metabolites, Terpinator® feeds to encourage increased production of terpenes to help heighten aroma and flavor. Terpinator® can be used in conjunction with General Hydroponics® nutrients or any feed regimen and is compatible with soil, hydroponics, and soilless media.

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Grodan A-OK Improved 1.5 in (36 mm) Starter Plugs, Loose in Carton (2,310 plugs)

Q112735

Grodan® A-OK Improved Starter Plugs™ for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks™. The plugs come loose in a carton for those who prefer to saturate individually.

  • Easy to use with propagation trays.
  • Shipped as individual loose AO plugs (1.4x1.4x1.6) bulk in the carton (2,310).
  • No shrink-wrap.
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Lost Coast Plant Protector (60 ml / 2 oz samples)

Q112786
  • Natural fertilizer supplement for healthy plant protection and reduction of abiotic stress.
  • Gentle and effective plant wash for care of house plants, yards, gardens, or commercial farms.
  • Minimizes stress in every stage of plant growth.
  • Simple ingredients, powerful results; promotes better yields.
  • Will not harm bees, ladybugs or praying mantis.
  • Can be used as a foliar application or soil drench.
  • Does not need a wetting agent.
  • Does not need pH adjustment.
  • 2 ounces concentrate mixes with water to make 2 gallons of ready-to-use spray.
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Lost Coast Plant Protector (10 L / 2.5 gal)

Q112785
  • Natural fertilizer supplement for healthy plant protection and reduction of abiotic stress.
  • Gentle and effective plant wash for care of house plants, yards, gardens, or commercial farms.
  • Minimizes stress in every stage of plant growth.
  • Simple ingredients, powerful results; promotes better yields.
  • Will not harm bees, ladybugs or praying mantis.
  • Can be used as a foliar application or soil drench.
  • Does not need a wetting agent.
  • Does not need pH adjustment.
  • 2.5 gallon concentrate mixes with water to make 320 gallons of ready-to-use spray.
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Lost Coast Plant Protector (4 L / 1 gal)

Q112784
  • Natural fertilizer supplement for healthy plant protection and reduction of abiotic stress.
  • Gentle and effective plant wash for care of house plants, yards, gardens, or commercial farms.
  • Minimizes stress in every stage of plant growth.
  • Simple ingredients, powerful results; promotes better yields.
  • Will not harm bees, ladybugs or praying mantis.
  • Can be used as a foliar application or soil drench.
  • Does not need a wetting agent.
  • Does not need pH adjustment.
  • 1 gallon concentrate mixes with water to make 128 gallons of ready-to-use spray.
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Lost Coast Plant Protector (946 ml / 32 oz)

Q112783
  • Natural fertilizer supplement for healthy plant protection and reduction of abiotic stress.
  • Gentle and effective plant wash for care of house plants, yards, gardens, or commercial farms.
  • Minimizes stress in every stage of plant growth.
  • Simple ingredients, powerful results; promotes better yields.
  • Will not harm bees, ladybugs or praying mantis.
  • Can be used as a foliar application or soil drench.
  • Does not need a wetting agent.
  • Does not need pH adjustment.
  • 32 ounce concentrate mixes with water to make 32 gallons of ready-to-use spray.
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Lost Coast Plant Protector (355 ml / 12 oz)

Q112782
  • Natural fertilizer supplement for healthy plant protection and reduction of abiotic stress.
  • Gentle and effective plant wash for care of house plants, yards, gardens, or commercial farms.
  • Minimizes stress in every stage of plant growth.
  • Simple ingredients, powerful results; promotes better yields.
  • Will not harm bees, ladybugs or praying mantis.
  • Can be used as a foliar application or soil drench.
  • Does not need a wetting agent.
  • Does not need pH adjustment.
  • 12 ounce concentrate mixes with water to make 12 gallons of ready-to-use spray.
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Grodan 1.5 in Pargro Plugs, 1.4 x 1.4 x 1.6 in (3.5 x 3.5 x 4 cm), Unwrapped Sheets in Carton

Q112798
  • Grodan® 1.5 inch Pargro® rockwool plugs.
  • Dimensions: 1.4 x 1.4 x 1.6 in (3.5 x 3.5 x 4 cm).
  • Unwrapped sheets in carton.
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6 Gallon (23 L) Container Spigot

Q112740
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GH ProRelease Field Formula 50LB

Q112996
General Hydroponics ProRelease Field Formula 20-7-20 is a blend of coated and uncoated granulated fertilizers designed for high value field grown crops like hemp and other aromatherapeutic herbs. Apply at the start of your season and watch your crops thrive. Feeds for up to 4 months*. *will vary based on soil needs, planting density, climate, crop, media, irrigation or rainfall amount and especially other nutrient usages.
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GH ProRelease CC Container Formula 50lb.

Q112997
Desingned for Cooler Climates (CC) the General Hydroponics ProRelease Container Fertilizers are 100% coated granulated fertilizers. Designed for high value crops like cannabis, hemp and other aromatherapeutic herbs grown in containers, raised beds or fabric grow pots. Incorporate or apply at transplant and watch your crops thrive. Feeds for up to 4 months*. *will vary based on soil needs, planting density, climate, crop, media, irrigation or rainfall amount and especially other nutrient usages.*
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GH PRORELEASE WC CONTAIN FORMULA 50LB

Q112998
Desingned for Warmer Climates (WC) the General Hydroponics ProRelease Container Fertilizers are 100% coated granulated fertilizers. Designed for high value crops like cannabis, hemp and other aromatherapeutic herbs grown in containers, raised beds or fabric grow pots. Incorporate or apply at transplant and watch your crops thrive. Feeds for up to 4 months*. *will vary based on soil needs, planting density, climate, crop, media, irrigation or rainfall amount and especially other nutrient usages.*
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GH TriShield Insecticide / Miticide / Fungicide 8 oz (12/case)

Q112999
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GH TriShield Insecticide / Miticide / Fungicide Quart (12/case)

Q113000
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GH TriShield Insecticide / Miticide / Fungicide Gallon (4/case)

Q113001
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GH TriShield Insecticide/ Miticide/ Fungicide 2.5 Gallon (2/Cs)

Q113002
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GH TriShield Insecticide / Miticide / Fungicide 6 Gallon

Q113003
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Botanicare Cal-Mag Plus 5 Gallon

Q113004
Cal-Mag™ Plus is a highly fortified calcium, magnesium and iron plant supplement formulated to correct common deficiencies. Supplementing your preferred nutrient program with Cal-Mag™ Plus is strongly recommended when using reverse osmosis water and when growing in coco coir-based medias to compensate for natural calcium draw. Cal-Mag™ Plus can also be applied as a foliar spray to further enhance growth.
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Botanicare Cal-Mag Plus 2.5 Gallon (2/Cs)

Q113005
Cal-Mag™ Plus is a highly fortified calcium, magnesium and iron plant supplement formulated to correct common deficiencies. Supplementing your preferred nutrient program with Cal-Mag™ Plus is strongly recommended when using reverse osmosis water and when growing in coco coir-based medias to compensate for natural calcium draw. Cal-Mag™ Plus can also be applied as a foliar spray to further enhance growth.
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Botanicare Cal-Mag Plus Gallon (4/Cs)

Q113006
Cal-Mag™ Plus is a highly fortified calcium, magnesium and iron plant supplement formulated to correct common deficiencies. Supplementing your preferred nutrient program with Cal-Mag™ Plus is strongly recommended when using reverse osmosis water and when growing in coco coir-based medias to compensate for natural calcium draw. Cal-Mag™ Plus can also be applied as a foliar spray to further enhance growth.
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Botanicare Cal-Mag Plus Quart (12/Cs)

Q113007
Cal-Mag™ Plus is a highly fortified calcium, magnesium and iron plant supplement formulated to correct common deficiencies. Supplementing your preferred nutrient program with Cal-Mag™ Plus is strongly recommended when using reverse osmosis water and when growing in coco coir-based medias to compensate for natural calcium draw. Cal-Mag™ Plus can also be applied as a foliar spray to further enhance growth.
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Botanicare Cal-Mag Plus 55 Gallon

Q113008
Cal-Mag™ Plus is a highly fortified calcium, magnesium and iron plant supplement formulated to correct common deficiencies. Supplementing your preferred nutrient program with Cal-Mag™ Plus is strongly recommended when using reverse osmosis water and when growing in coco coir-based medias to compensate for natural calcium draw. Cal-Mag™ Plus can also be applied as a foliar spray to further enhance growth.
Picture of Botanicare Cal-Mag Plus 250 Gallon

Botanicare Cal-Mag Plus 250 Gallon

Q113009
Cal-Mag™ Plus is a highly fortified calcium, magnesium and iron plant supplement formulated to correct common deficiencies. Supplementing your preferred nutrient program with Cal-Mag™ Plus is strongly recommended when using reverse osmosis water and when growing in coco coir-based medias to compensate for natural calcium draw. Cal-Mag™ Plus can also be applied as a foliar spray to further enhance growth.
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LIQUID KARMA 1GAL

Q113010
"When used in combination with your preferred plant food, Liquid Karma may enhance the nutritional environment allowing for optimal plant uptake. This dynamic plant food is one of the most versatile products in our line. Liquid Karma supports vegetative growth during the early stages of plant life. Its low nitrogen, phosphorous and potassium content allows it to be used for plant starts, cuttings, seedlings and mother plants. Liquid Karma may enhance the nutritional environment, aiding with root development and nutrient uptake which allows for vibrant foliage, fruit and bud sites."
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LIQUID KARMA 5GAL/1

Q113011
"When used in combination with your preferred plant food, Liquid Karma may enhance the nutritional environment allowing for optimal plant uptake. This dynamic plant food is one of the most versatile products in our line. Liquid Karma supports vegetative growth during the early stages of plant life. Its low nitrogen, phosphorous and potassium content allows it to be used for plant starts, cuttings, seedlings and mother plants. Liquid Karma may enhance the nutritional environment, aiding with root development and nutrient uptake which allows for vibrant foliage, fruit and bud sites."
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LIQUID KARMA 2.5GAL

Q113012
"When used in combination with your preferred plant food, Liquid Karma may enhance the nutritional environment allowing for optimal plant uptake. This dynamic plant food is one of the most versatile products in our line. Liquid Karma supports vegetative growth during the early stages of plant life. Its low nitrogen, phosphorous and potassium content allows it to be used for plant starts, cuttings, seedlings and mother plants. Liquid Karma may enhance the nutritional environment, aiding with root development and nutrient uptake which allows for vibrant foliage, fruit and bud sites."
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LIQUID KARMA 1QT

Q113013
"When used in combination with your preferred plant food, Liquid Karma may enhance the nutritional environment allowing for optimal plant uptake. This dynamic plant food is one of the most versatile products in our line. Liquid Karma supports vegetative growth during the early stages of plant life. Its low nitrogen, phosphorous and potassium content allows it to be used for plant starts, cuttings, seedlings and mother plants. Liquid Karma may enhance the nutritional environment, aiding with root development and nutrient uptake which allows for vibrant foliage, fruit and bud sites."
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