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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Super Sprouter Seedling Heat Mat 10 in x 21 in (10/Cs)

Q102275

Warms root area approximately 10–20° F over ambient temperature to improve germination process. Helps gardeners have better success rates with seedlings and cuttings. Perfect for one standard 10 in x 20 in propagation tray. Heavy-duty construction makes this mat very durable. More than 20% larger than competitive mats. This allows even warming of your entire tray. More consistent heating with fewer hot spots than other seedling heat mats. Ed Hume seal of approval. 20 W. Dimensions: 10 in x 21 in.

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Super Sprouter Digital Heat Mat Thermostat (10/Cs)

Q102276
  • Easy to use: Plug heat mat into thermostat, place temperature probe.
  • Temperature control range: 68 to 108°F (20 to 42°C).
  • Back-lit digital display: Easily view and set temperatures.
  • Maximum current rating: 8.3 Amps/1,000 W.
  • Includes: 6-foot power cord and probe with suction cup.
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Super Sprouter AirMax Tray (50/Cs)

Q102277

Super Sprouter® AirMax™ Tray Inserts help provide outstanding drainage and aeration to clones grown in Grodan Stonewool A-OK Starter Plugs™. These mesh tray inserts are designed to allow high levels of oxygen to enter the root zone in your clone trays. More oxygen at the roots can help maximize root growth and help minimize damping-off in young clones and seedlings. By elevating plants above the propagation tray’s bottom surface, the AirMax™ allows excess water to run off and holds plants above standing water. This helps to avoid oversaturated roots and promote proper drainage and airflow. Its low profile provides clear visibility to root development and unrestricted access to cuttings for proper care and monitoring, without disturbing delicate plants.

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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.
Q112782.jpg

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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PRO-MIX ROOTS Liquid Root Stimulator (60 g / 2.1 oz)

Q112898
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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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