Hawthorne Gardening Company

Green leaf with white veins above blue water waves and bubbles, BotaniCare logo representing hawthorne hydroponics plant care products.
Greenhouse Megastore logo featuring General Hydroponics branding with a green and yellow color scheme, emphasizing hawthorne hydroponics supplies.
Hawthorne hydroponics True Liberty Bags logo featuring a brown and beige circular design with a stylized Liberty Bell in the center.
SuperSprouter seed starting kit packaging with green and black text on white background, featuring a small sprouting seed graphic, promoting hawthorne hydroponics.
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      121 products
      Botanicare® Through - All Bulkhead Fitting - Greenhouse Megastore
      Botanicare® Through-All Bulkhead Fitting
      $1.99
      Botanicare® Clearex® Rinsing Solution - Greenhouse Megastore
      Botanicare® Clearex® Rinsing Solution - Greenhouse Megastore
      Botanicare® Clearex® Rinsing Solution
      Starting at $9.89
      Mother Earth® Power Flower™ Fantastic Flowering Mix 1 - 8 - 6 - Greenhouse Megastore
      Mother Earth® Power Flower™ Fantastic Flowering Mix 1 - 8 - 6 - Greenhouse Megastore
      Mother Earth® Power Flower™ Fantastic Flowering Mix 1-8-6
      $13.49
      Sold Out
      Super Sprouter® Sterile Disposable Scalpel - Greenhouse Megastore
      Super Sprouter® Sterile Disposable Scalpel
      $17.50
      Botanicare® Ebb & Flow Extension Fitting - Greenhouse Megastore
      Botanicare® Ebb & Flow Extension Fitting
      Starting at $0.70
      Botanicare® CocoPro™ Propagation Plugs - Greenhouse Megastore
      Botanicare® CocoPro™ Propagation Plugs - Greenhouse Megastore
      Botanicare® CocoPro™ Propagation Plugs
      Starting at $200.00
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      Botanicare® CocoPro™ Cubes - Greenhouse Megastore
      Botanicare® CocoPro™ Cubes - Greenhouse Megastore
      Botanicare® CocoPro™ Cubes
      $66.67 $88.89

      Save $22.22

      Hydro Flow® Premium Barbed Straight Fitting - Pack of 10 - Greenhouse Megastore
      Hydro Flow® Premium Barbed Straight Fitting - Pack of 10 - Greenhouse Megastore
      Hydro Flow® Premium Barbed Straight Fitting - 10 fittings
      Starting at $6.50
      EcoPlus® Pump Filter Bag Large - 10 in x 12.5 in - Greenhouse Megastore
      EcoPlus® Pump Filter Bag Large - 10 in x 12.5 in - Greenhouse Megastore
      EcoPlus® Pump Filter Bag Large - 10 in x 12.5 in
      $14.40
      True Liberty® 55 Gallon Home & Garden Drum Liners - Greenhouse Megastore
      True Liberty® 55 Gallon Home & Garden Drum Liners - Greenhouse Megastore
      True Liberty® 55 Gallon Home & Garden Drum Liners
      Starting at $110.00
      Botanicare® CocoPro™ Bag - Greenhouse Megastore
      Botanicare® CocoPro™ Bag - Greenhouse Megastore
      Botanicare® CocoPro™ Bag
      Starting at $55.80
      Botanicare® Hydroplex® Bloom 0 - 10 - 6 - Greenhouse Megastore
      Botanicare® Hydroplex® Bloom 0 - 10 - 6 - Greenhouse Megastore
      Botanicare® Hydroplex® Bloom 0-10-6
      Starting at $33.26
      Mother Earth® Farmers Market All Purpose Mix 4 - 5 - 4 - Greenhouse Megastore
      Mother Earth® Farmers Market All Purpose Mix 4 - 5 - 4 - Greenhouse Megastore
      Mother Earth® Farmers Market All Purpose Mix 4-5-4
      $13.49
      Rainmaker® Lithium Ion Battery Powered Backpack Sprayer - Greenhouse Megastore
      Rainmaker® Lithium Ion Battery Powered Backpack Sprayer
      $241.00
      Closeout
      Mother Earth® Floressence™ Bloom Supplement 1 - 1 - 1 - Greenhouse Megastore
      Mother Earth® Floressence™ Bloom Supplement 1 - 1 - 1 - Greenhouse Megastore
      Mother Earth® Floressence™ Bloom Supplement 1-1-1
      Starting at $8.15 $10.19

      Save $2.04

      Sale
      General Hydroponics® KoolBloom® Dry 2 - 45 - 28 - Greenhouse Megastore
      General Hydroponics® KoolBloom® Dry 2 - 45 - 28 - Greenhouse Megastore
      General Hydroponics® KoolBloom® Dry 2-45-28
      Starting at $21.41 $23.79

      Save $2.38

      General Hydroponics® Floralicious® Plus 2 - 0.8 - 0.5 - Greenhouse Megastore
      General Hydroponics® Floralicious® Plus 2 - 0.8 - 0.5 - Greenhouse Megastore
      General Hydroponics® Floralicious® Plus 2-0.8-0.5
      Starting at $177.00
      Sold Out
      EcoPlus® Water Chiller - Greenhouse Megastore
      EcoPlus® Water Chiller - Greenhouse Megastore
      EcoPlus® Water Chiller
      Starting at $418.00
      Grower's Edge® Green Trellis Netting - Greenhouse Megastore
      Grower's Edge® Green Trellis Netting - Greenhouse Megastore
      Grower's Edge® Green Trellis Netting
      $465.00
      Closeout
      General Hydroponics® 6 gal. Container Spigot - Greenhouse Megastore
      General Hydroponics® 6 gal. Container Spigot
      $2.65 $3.79

      Save $1.14

      Botanicare® Sweet® Carbo Raw Plant Food - Greenhouse Megastore
      Botanicare® Sweet® Carbo Raw Plant Food
      Starting at $21.47
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      General Hydroponics® TrueFlo™ Irrigation Line Cleaner - Greenhouse Megastore
      General Hydroponics® TrueFlo™ Irrigation Line Cleaner - Greenhouse Megastore
      General Hydroponics® TrueFlo™ Irrigation Line Cleaner
      Starting at $12.49
      Hydro Flow® Ebb & Flow Screen Fitting - Greenhouse Megastore
      Hydro Flow® Ebb & Flow Screen Fitting - 10 fittings
      $11.10
      Hydro Flow® Ebb & Flow Outlet Extension Fitting - Pack of 10 - Greenhouse Megastore
      Hydro Flow® Ebb & Flow Outlet Extension Fitting - 10 fittings
      $11.10
      Sold Out
      EcoPlus® Commercial Grade Water Chiller - Greenhouse Megastore
      EcoPlus® Commercial Grade Water Chiller - Greenhouse Megastore
      EcoPlus® Commercial Grade Water Chiller
      Starting at $1,304.00