Plant Propagation, Nutrition & Health

A complete range of plant propagation, nutrition, and health products designed to support robust growth and maximize yields. Whether you’re focused on cloning and seed starting, enhancing plant vigor with nutrients and supplements, or protecting crops from pests and diseases, Quality Horticulture's curated selection offers reliable solutions for every stage of plant development. Featuring industry-leading brands trusted by professional growers like General Hydroponics, Mondi Products, and MIIM Horticulture.

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GH Liquid KoolBloom 6 Gallon

Q113300
Liquid KoolBloom® is a bulking agent that goes way beyond other bloom boosters. Enriched with stress-reducing vitamins and nutrient-transporting acids, it promotes heavy production of essential oils, fantastic flavors and increases fruiting and flower development. Liquid KoolBloom® should be used at the start of the reproductive cycle, initiating larger, heavier fruits and flowers. During the last two weeks, use Dry KoolBloom® for an additional bloom boost and to facilitate ripening.
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GH Liquid KoolBloom Gallon (4/Cs)

Q113298
Liquid KoolBloom® is a bulking agent that goes way beyond other bloom boosters. Enriched with stress-reducing vitamins and nutrient-transporting acids, it promotes heavy production of essential oils, fantastic flavors and increases fruiting and flower development. Liquid KoolBloom® should be used at the start of the reproductive cycle, initiating larger, heavier fruits and flowers. During the last two weeks, use Dry KoolBloom® for an additional bloom boost and to facilitate ripening.
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GH Liquid KoolBloom Pro 6 Gallon

Q100099

Liquid KoolBloom® Professional is a flower boosting specialty fertilizer that is high in phosphorus and potassium to ensure robust flowering.

  • Certain plants require a lower total nitrogen to potassium ratio during the flower phase, as well as increased levels of phosphorus. Liquid KoolBloom Professional can help push a plant into the generative phase by optimizing the ratios of these important macronutrients.
  • Liquid KoolBloom Professional is highly concentrated and should therefore be used as part of a balanced fertility program. Contact our Technical Services team and learn more about how Liquid KoolBloom Professional can benefit your crops.
  • Liquid KoolBloom Professional should be used during the early through late flowering phases and be replaced with General Hydroponics® Ripen® during the final phase of flower for optimum results.
  • Liquid KoolBloom Professional is compatible with soil, soilless medias, coir, hydroponics and is suitable for fertilizer injection systems.
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GH Liquid KoolBloom Quart

Q100065

Liquid KoolBloom® is a bulking agent that goes way beyond other bloom boosters. Enriched with stress-reducing vitamins and nutrient-transporting acids, it promotes heavy production of essential oils, fantastic flavors and increases fruiting and flower development. Liquid KoolBloom should be used at the start of the reproductive cycle, initiating larger, heavier fruits and flowers. During the last two weeks, use Dry KoolBloom for an additional bloom boost and to facilitate ripening.

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GH Liquid KoolBloom Quart (12/Cs)

Q113297
Liquid KoolBloom® is a bulking agent that goes way beyond other bloom boosters. Enriched with stress-reducing vitamins and nutrient-transporting acids, it promotes heavy production of essential oils, fantastic flavors and increases fruiting and flower development. Liquid KoolBloom® should be used at the start of the reproductive cycle, initiating larger, heavier fruits and flowers. During the last two weeks, use Dry KoolBloom® for an additional bloom boost and to facilitate ripening.
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GH MaxiBloom 16 lb

Q113102
MaxiGro™ and MaxiBloom™ are extremely potent, stand-alone, water-soluble, dry concentrate nutrients. Complete in primary, secondary and micronutrients, pH buffered MaxiGro™ and MaxiBloom™ will provide superior results when used with a wide variety of crops in both hydroponic and soil-based environments. MaxiGro™ is for the reproductive stage in fast growing annuals. MaxiBloom™ encourages prolific flowering and fruiting and increases yields and crop quality.
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GH MaxiBloom 2.2 lb (12/Cs)

Q113101
MaxiGro™ and MaxiBloom™ are extremely potent, stand-alone, water-soluble, dry concentrate nutrients. Complete in primary, secondary and micronutrients, pH buffered MaxiGro™ and MaxiBloom™ will provide superior results when used with a wide variety of crops in both hydroponic and soil-based environments. MaxiGro™ is for the reproductive stage in fast growing annuals. MaxiBloom™ encourages prolific flowering and fruiting and increases yields and crop quality.
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GH MaxiBloom 50 lb

Q113103
MaxiGro™ and MaxiBloom™ are extremely potent, stand-alone, water-soluble, dry concentrate nutrients. Complete in primary, secondary and micronutrients, pH buffered MaxiGro™ and MaxiBloom™ will provide superior results when used with a wide variety of crops in both hydroponic and soil-based environments. MaxiGro™ is for the reproductive stage in fast growing annuals. MaxiBloom™ encourages prolific flowering and fruiting and increases yields and crop quality.
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GH MaxiGro 16 lb

Q113105
MaxiGro™ and MaxiBloom™ are extremely potent, stand-alone, water-soluble, dry concentrate nutrients. Complete in primary, secondary and micronutrients, pH buffered MaxiGro™ and MaxiBloom™ will provide superior results when used with a wide variety of crops in both hydroponic and soil-based environments. MaxiGro™ encourages growth of seedlings, cuttings and stimulates rapid growth through the vegetative growth stage.
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GH MaxiGro 2.2 lb (12/Cs)

Q113104
MaxiGro™ and MaxiBloom™ are extremely potent, stand-alone, water-soluble, dry concentrate nutrients. Complete in primary, secondary and micronutrients, pH buffered MaxiGro™ and MaxiBloom™ will provide superior results when used with a wide variety of crops in both hydroponic and soil-based environments. MaxiGro™ encourages growth of seedlings, cuttings and stimulates rapid growth through the vegetative growth stage.
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GH MaxiGro 50 lb

Q113106
MaxiGro™ and MaxiBloom™ are extremely potent, stand-alone, water-soluble, dry concentrate nutrients. Complete in primary, secondary and micronutrients, pH buffered MaxiGro™ and MaxiBloom™ will provide superior results when used with a wide variety of crops in both hydroponic and soil-based environments. MaxiGro™ encourages growth of seedlings, cuttings and stimulates rapid growth through the vegetative growth stage.
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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 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 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 Rapid Rooter 100/Pack Replacement Plugs

Q113041
Rapid Rooter® plugs are all-natural soilless grow plugs made of composted tree bark and organic materials. These plugs are perfect for seedlings or cuttings. Transplant plugs in soil or soilless hydrogardening applications.
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GH Rapid Rooter 50 Cell Plug Tray (12/Cs)

Q113050
Rapid Rooter® plugs are all-natural soilless grow plugs made of composted tree bark and organic materials. These plugs are perfect for seedlings or cuttings. Transplant plugs in soil or soilless hydrogardening applications.
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GH Rapid Rooter 50/Pack Replacement Plugs (12/Cs)

Q113049
Rapid Rooter® plugs are all-natural soilless grow plugs made of composted tree bark and organic materials. These plugs are perfect for seedlings or cuttings. Transplant plugs in soil or soilless hydrogardening applications.
Picture of GH Rapid Rooter Bulk Plugs (1400/Cs)

GH Rapid Rooter Bulk Plugs (1400/Cs)

Q113042
Rapid Rooter® plugs are all-natural soilless grow plugs made of composted tree bark and organic materials. These plugs are perfect for seedlings or cuttings. Transplant plugs in soil or soilless hydrogardening applications.
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GH Rapid Start 55 Gallon

Q113196
RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart® helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.
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GH Rapid Start Pro 6 Gallon

Q100174

RapidStart® Professional is a proprietary blend of nutritive plant extracts and minerals that promote explosive root growth. Using RapidStart Professional encourages the formation of fine root hairs and lateral root branching, which in term will enhance plant vigor and yield.

  • RapidStart is highly concentrated and is best used during the vegetative through early flower phases when active root growth occurs.
  • We recommend pre-soaking stone wool cubes, plugs and flats with RapidStart Professional nutrient solution prior to seeding or propagating from cuttings for faster root growth and success.
  • RapidStart Professional is compatible with soil, soilless medias, coir, hydroponics and is suitable for fertilizer injection systems.
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GH RapidStart 1 Liter

Q100172

RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.

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GH RapidStart 1 Liter (6/Cs)

Q113198
RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart® helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.
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GH RapidStart 125 ml (24/Cs)

Q113188
RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart® helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.
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GH RapidStart 275 ml

Q100170

RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.

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