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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      130 products
      Super Sprouter® Digital Heat Mat Thermostat - Greenhouse Megastore
      Super Sprouter® Digital Heat Mat Thermostat
      $39.99
      Shear Perfection® Platinum Stainless Trimming Shear - Greenhouse Megastore
      Shear Perfection® Platinum Stainless Trimming Shear
      $8.19
      Botanicare® Horti - Trellis - Greenhouse Megastore
      Botanicare® Horti - Trellis - Greenhouse Megastore
      Botanicare® Horti-Trellis
      Starting at $5.99
      General Hydroponics® FloraBloom® 0 - 5 - 4 - Greenhouse Megastore
      General Hydroponics® FloraBloom® 0 - 5 - 4 - Greenhouse Megastore
      General Hydroponics® FloraBloom® 0-5-4
      Starting at $9.79
      Sold Out
      Shear Perfection® Precision Series Non - Stick Scissor - Greenhouse Megastore
      Shear Perfection® Precision Series Non - Stick Scissor - Greenhouse Megastore
      Shear Perfection® Precision Series Non-Stick Scissor
      $8.69
      Grower's Edge® Thrips & Leafminer Sticky Trap - Greenhouse Megastore
      Grower's Edge® Thrips & Leafminer Sticky Trap
      $4.73
      General Hydroponics® Terpinator® 0 - 0 - 4 - Greenhouse Megastore
      General Hydroponics® Terpinator® 0 - 0 - 4 - Greenhouse Megastore
      General Hydroponics® Terpinator® 0-0-4
      Starting at $15.85
      Botanicare® Ebb & Flow Barbed Fitting - Greenhouse Megastore
      Botanicare® Ebb & Flow Barbed Fitting - Greenhouse Megastore
      Botanicare® Ebb & Flow Barbed Fitting
      Starting at $1.99
      General Hydroponics® FloraKleen® - Greenhouse Megastore
      General Hydroponics® FloraKleen® - Greenhouse Megastore
      General Hydroponics® FloraKleen®
      Starting at $9.59
      Botanicare® Hydroguard® Bacillus Root Inoculant - Greenhouse Megastore
      Botanicare® Hydroguard® Bacillus Root Inoculant
      Starting at $22.99
      Botanicare® Pure Blend® Pro Soil 1 - 4 - 5 - Greenhouse Megastore
      Botanicare® Pure Blend® Pro Soil 1 - 4 - 5 - Greenhouse Megastore
      Botanicare® Pure Blend® Pro Soil 1-4-5
      Starting at $17.50
      Shear Perfection® Senshi® Non - Stick Bonsai Scissor with 2 in. Blade - Greenhouse Megastore
      Shear Perfection® Senshi® Non - Stick Bonsai Scissor with 2 in. Blade - Greenhouse Megastore
      Shear Perfection® Senshi® Non-Stick Bonsai Scissor with 2 in. Blade
      $22.15
      Botanicare® Pure Blend® Pro Bloom Formula 2 - 3 - 5 - Greenhouse Megastore
      Botanicare® Pure Blend® Pro Bloom Formula 2 - 3 - 5 - Greenhouse Megastore
      Botanicare® Pure Blend® Pro Bloom Formula 2-3-5
      Starting at $15.74
      Grower's Edge® Soft Mesh Trellis Netting - 3.5 in. Squares - Greenhouse Megastore
      Grower's Edge® Soft Mesh Trellis Netting - 3.5 in. Squares - Greenhouse Megastore
      Grower's Edge® Soft Mesh Trellis Netting - 3.5 in. Squares
      Starting at $9.35
      EcoPlus® Commercial Grade Chiller Fitting Kit - Greenhouse Megastore
      EcoPlus® Commercial Grade Chiller Fitting Kit - Greenhouse Megastore
      EcoPlus® Commercial Grade Chiller Fitting Kit
      $16.79
      General Hydroponics® FloraNova® Bloom 4 - 8 - 7 - Greenhouse Megastore
      General Hydroponics® FloraNova® Bloom 4 - 8 - 7 - Greenhouse Megastore
      General Hydroponics® FloraNova® Bloom 4-8-7
      Starting at $12.89
      General Hydroponics® FloraMicro® 5 - 0 - 1 - Greenhouse Megastore
      General Hydroponics® FloraMicro® 5 - 0 - 1 - Greenhouse Megastore
      General Hydroponics® FloraMicro® 5-0-1
      Starting at $10.25
      Botanicare® Rhizo Blast® 1.15 - 0.5 - 1.15 - Greenhouse Megastore
      Botanicare® Rhizo Blast® 1.15 - 0.5 - 1.15 - Greenhouse Megastore
      Botanicare® Rhizo Blast® 1.15-0.5-1.15
      Starting at $42.79
      General Hydroponics® Liquid KoolBloom 0 - 10 - 10 - Greenhouse Megastore
      General Hydroponics® Liquid KoolBloom 0 - 10 - 10 - Greenhouse Megastore
      General Hydroponics® Liquid KoolBloom 0-10-10
      Starting at $15.26
      General Hydroponics® RapidStart® 1 - 0.5 - 1 - Greenhouse Megastore
      General Hydroponics® RapidStart® 1 - 0.5 - 1 - Greenhouse Megastore
      General Hydroponics® RapidStart® 1-0.5-1
      Starting at $19.99
      Rainmaker® 5 Gallon Battery Powered Sprayer - Greenhouse Megastore
      Rainmaker® 5 Gallon Battery Powered Sprayer
      $197.00
      Harvest Keeper® Commercial Grade Vacuum Sealer - Greenhouse Megastore
      Harvest Keeper® Commercial Grade Vacuum Sealer - Greenhouse Megastore
      Harvest Keeper® Commercial Grade Vacuum Sealer
      $414.00
      Rainmaker® 4 Gallon Backpack Sprayer - Greenhouse Megastore
      Rainmaker® 4 Gallon Backpack Sprayer
      $42.05
      Closeout
      General Hydroponics® TriShield™ Insecticide, Miticide, and Fungicide - Greenhouse Megastore
      General Hydroponics® TriShield™ Insecticide, Miticide, and Fungicide - Greenhouse Megastore
      General Hydroponics® TriShield™ Insecticide, Miticide, and Fungicide
      Starting at $10.40 $11.55

      Save $1.15

      Botanicare® Ebb & Flow Fitting Kit - Greenhouse Megastore
      Botanicare® Ebb & Flow Fitting Kit
      $7.35
      Super Sprouter® T5 High Output Grow Light - Greenhouse Megastore
      Super Sprouter® T5 High Output Grow Light
      $39.29
      Harvest Keeper® Pre - cut Vacuum Seal Bags - Pack of 50 - Greenhouse Megastore
      Harvest Keeper® Pre - cut Vacuum Seal Bags - Pack of 50 - Greenhouse Megastore
      Harvest Keeper® Pre-cut Vacuum Seal Bags - 50 bags
      Starting at $25.92
      Botanicare® Liquid Karma® 0.1 - 0.1 - 0.5 - Greenhouse Megastore
      Botanicare® Liquid Karma® 0.1 - 0.1 - 0.5 - Greenhouse Megastore
      Botanicare® Liquid Karma® 0.1-0.1-0.5
      Starting at $18.68
      Sale
      General Hydroponics® FloraNectar® FruitnFusion 0 - 0 - 1 - Greenhouse Megastore
      General Hydroponics® FloraNectar® FruitnFusion 0 - 0 - 1 - Greenhouse Megastore
      General Hydroponics® FloraNectar® FruitnFusion 0-0-1
      Starting at $15.08 $16.75

      Save $1.67

      Mother Earth® Root Down™ Plant Starter Mix 3 - 6 - 3 - Greenhouse Megastore
      Mother Earth® Root Down™ Plant Starter Mix 3 - 6 - 3 - Greenhouse Megastore
      Mother Earth® Root Down™ Plant Starter Mix 3-6-3
      $13.49
      Mother Earth® Acid Drop™ for Acid - Loving Plants 3 - 4 - 6 - Greenhouse Megastore
      Mother Earth® Acid Drop™ for Acid - Loving Plants 3 - 4 - 6 - Greenhouse Megastore
      Mother Earth® Acid Drop™ for Acid-Loving Plants 3-4-6
      $13.49
      General Hydroponics® Armor Si™ 0 - 0 - 4 - Greenhouse Megastore
      General Hydroponics® Armor Si™ 0 - 0 - 4 - Greenhouse Megastore
      General Hydroponics® Armor Si™ 0-0-4
      Starting at $100.00
      EcoPlus® 1500 Elite Submersible Pump - Greenhouse Megastore
      EcoPlus® 1500 Elite Submersible Pump - Greenhouse Megastore
      EcoPlus® 1500 Elite Submersible Pump
      $166.00
      EcoPlus® Round Air Stone - Greenhouse Megastore
      EcoPlus® Round Air Stone - Greenhouse Megastore
      EcoPlus® Round Air Stone
      Starting at $1.99
      General Hydroponics® Ripen® 0.5 - 7 - 6 - Greenhouse Megastore
      General Hydroponics® Ripen® 0.5 - 7 - 6 - Greenhouse Megastore
      General Hydroponics® Ripen® 0.5-7-6
      Starting at $22.46
      Mother Earth® LiquiCraft Bloom™ 2 - 4 - 4 - Greenhouse Megastore
      Mother Earth® LiquiCraft Bloom™ 2 - 4 - 4 - Greenhouse Megastore
      Mother Earth® LiquiCraft Bloom™ 2-4-4
      Starting at $15.29
      Mother Earth® Season's Choice™ Tomato & Vegetable Mix 4 - 5 - 6 - Greenhouse Megastore
      Mother Earth® Season's Choice™ Tomato & Vegetable Mix 4 - 5 - 6 - Greenhouse Megastore
      Mother Earth® Season's Choice™ Tomato & Vegetable Mix 4-5-6
      $13.49
      EcoPlus® Water Chiller Fitting Kit - Greenhouse Megastore
      EcoPlus® Water Chiller Fitting Kit - Greenhouse Megastore
      EcoPlus® Water Chiller Fitting Kit
      $12.29
      Botanicare® Ebb & Flow Screen Fitting - Greenhouse Megastore
      Botanicare® Ebb & Flow Screen Fitting
      Starting at $0.70
      General Hydroponics® FloraBlend® 0.5 - 1 - 1 - Greenhouse Megastore
      General Hydroponics® FloraBlend® 0.5 - 1 - 1 - Greenhouse Megastore
      General Hydroponics® FloraBlend® 0.5-1-1
      Starting at $8.87
      EcoPlus® Aqua Heat Titanium Heater 300 Watt - Greenhouse Megastore
      EcoPlus® Aqua Heat Titanium Heater 300 Watt - Greenhouse Megastore
      EcoPlus® Aqua Heat Titanium Heater 300 Watt
      $36.79
      General Hydroponics® FloraNova Grow® 7 - 4 - 10 - Greenhouse Megastore
      General Hydroponics® FloraNova Grow® 7 - 4 - 10 - Greenhouse Megastore
      General Hydroponics® FloraNova Grow® 7-4-10
      Starting at $70.59
      Hydro Flow® Premium Barbed Tee Fitting - Pack of 10 - Greenhouse Megastore
      Hydro Flow® Premium Barbed Tee Fitting - Pack of 10 - Greenhouse Megastore
      Hydro Flow® Premium Barbed Tee Fitting - 10 fittings
      Starting at $6.20
      Hydro Flow® Premium Barbed Elbow Fitting - Pack of 10 - Greenhouse Megastore
      Hydro Flow® Premium Barbed Elbow Fitting - Pack of 10 - Greenhouse Megastore
      Hydro Flow® Premium Barbed Elbow Fitting - 10 fittings
      Starting at $6.20
      True Liberty® All Purpose Home & Garden Bin Liners - Greenhouse Megastore
      True Liberty® All Purpose Home & Garden Bin Liners - Greenhouse Megastore
      True Liberty® All Purpose Home & Garden Bin Liners
      Starting at $42.49
      Shear Perfection® Senshi® Non - Stick Bonsai Scissor with 2.5 inch Blade - Greenhouse Megastore
      Shear Perfection® Senshi® Non - Stick Bonsai Scissor with 2.5 inch Blade - Greenhouse Megastore
      Shear Perfection® Senshi® Non-Stick Bonsai Scissor with 2.5 inch Blade
      $22.19
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      General Hydroponics® FloraGro® 2 - 1 - 6 - Greenhouse Megastore
      General Hydroponics® FloraGro® 2 - 1 - 6 - Greenhouse Megastore
      General Hydroponics® FloraGro® 2-1-6
      Starting at $8.59
      Botanicare® Pure Blend® Pro Grow Formula 3 - 2 - 4 - Greenhouse Megastore
      Botanicare® Pure Blend® Pro Grow Formula 3 - 2 - 4 - Greenhouse Megastore
      Botanicare® Pure Blend® Pro Grow Formula 3-2-4
      Starting at $15.00