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.
    Filter
      126 products
      Gro Pro® Heavy - Duty Black Plastic Saucer - Greenhouse Megastore
      Gro Pro® Heavy - Duty Black Plastic Saucer - Greenhouse Megastore
      Gro Pro® Heavy-Duty Black Plastic Saucer
      Starting at $7.85
      Gro Pro® Premium Round Black Nursery Pot - Greenhouse Megastore
      Gro Pro® Premium Round Black Nursery Pot - Greenhouse Megastore
      Gro Pro® Premium Round Black Nursery Pot
      Starting at $18.75
      Gro Pro® Pattern Design Square Plastic Pot - Greenhouse Megastore
      Gro Pro® Pattern Design Square Plastic Pot - Greenhouse Megastore
      Gro Pro® Pattern Design Square Plastic Pot
      Starting at $11.00
      Gro Pro® Premium Round Squat Nursery Pot - Greenhouse Megastore
      Gro Pro® Premium Round Squat Nursery Pot - Greenhouse Megastore
      Gro Pro® Premium Round Squat Nursery Pot
      Starting at $30.90
      Gro Pro® 10 Pack Premium Tall Round Black Nursery Pot - Greenhouse Megastore
      Gro Pro® 10 Pack Premium Tall Round Black Nursery Pot - Greenhouse Megastore
      Gro Pro® Premium Tall Round Black Nursery Pot
      Starting at $31.50
      Grower's Edge® Plant Stake Labels - Box of 1000 - Greenhouse Megastore
      Grower's Edge® Plant Stake Labels - Box of 1000 - Greenhouse Megastore
      Grower's Edge® Plant Stake Labels - 1000 labels
      Starting at $24.75
      Super Sprouter® Standard Humidity Dome - Greenhouse Megastore
      Super Sprouter® Standard Humidity Dome
      Starting at $36.75
      EcoPlus® Eco Fixed Flow Submersible Inline Pump - Greenhouse Megastore
      EcoPlus® Eco Fixed Flow Submersible Inline Pump - Greenhouse Megastore
      EcoPlus® Eco Fixed Flow Submersible Inline Pump
      Starting at $16.99
      Gro Pro® Premium Square Black Nursery Pot - Greenhouse Megastore
      Gro Pro® Premium Square Black Nursery Pot - Greenhouse Megastore
      Gro Pro® Premium Square Black Nursery Pot
      Starting at $61.25
      Super Sprouter® Quad Thick 1020 Trays - Greenhouse Megastore
      Super Sprouter® Quad Thick 1020 Trays - Greenhouse Megastore
      Super Sprouter® Quad Thick 1020 Trays
      Starting at $31.45
      Sold Out
      Super Sprouter® 1020 Propagation Trays - Greenhouse Megastore
      Super Sprouter® 1020 Propagation Trays
      Starting at $7.45
      General Hydroponics® Rapid Rooter® 50 Cell Plug Tray - Greenhouse Megastore
      General Hydroponics® Rapid Rooter® 50 Cell Plug Tray
      $25.99
      General Hydroponics® MaxiGro™ 10 - 5 - 14 - Greenhouse Megastore
      General Hydroponics® MaxiGro™ 10 - 5 - 14 - Greenhouse Megastore
      General Hydroponics® MaxiGro™ 10-5-14
      Starting at $13.15
      Gro Pro® One 'n Done Commercial Fabric Pot - Greenhouse Megastore
      Gro Pro® One 'n Done Commercial Fabric Pot - Greenhouse Megastore
      Gro Pro® One 'n Done Commercial Fabric Pot - 1 to 7 Gallon - 10 pots
      Starting at $7.00
      Gro Pro® Essential Round Fabric Grow Pot - Greenhouse Megastore
      Gro Pro® Essential Round Fabric Grow Pot - Greenhouse Megastore
      Gro Pro® Essential Round Fabric Grow Pot - 1 to 100 Gallon
      Starting at $12.20
      Grower's Edge® Crop Clip - Pack of 100 - Greenhouse Megastore
      Grower's Edge® Crop Clip - Pack of 100 - Greenhouse Megastore
      Grower's Edge® Crop Clips - 100 clips
      $6.00
      True Liberty® All Purpose Home & Garden Bags - Greenhouse Megastore
      True Liberty® All Purpose Home & Garden Bags - Greenhouse Megastore
      True Liberty® All Purpose Home & Garden Bags
      Starting at $10.99
      General Hydroponics® Rapid Rooter® Replacement Grow Plugs - Greenhouse Megastore
      General Hydroponics® Rapid Rooter® Replacement Grow Plugs - Greenhouse Megastore
      General Hydroponics® Rapid Rooter® Replacement Grow Plugs
      Starting at $11.49
      Grower's Edge® Commercial Grade Trellis Netting - Greenhouse Megastore
      Grower's Edge® Commercial Grade Trellis Netting - Greenhouse Megastore
      Grower's Edge® Commercial Grade Trellis Netting
      Starting at $3.99
      Super Sprouter® 50 Cell Square Plug Insert Tray - Greenhouse Megastore
      Super Sprouter® 50 Cell Square Plug Insert Tray - Greenhouse Megastore
      Super Sprouter® 50 Cell Square Plug Insert Tray
      Starting at $15.45
      General Hydroponics® CALiMAGic™ 1 - 0 - 0 - Greenhouse Megastore
      General Hydroponics® CALiMAGic™ 1 - 0 - 0 - Greenhouse Megastore
      General Hydroponics® CALiMAGic™ 1-0-0
      Starting at $14.89
      Gro Pro® Injection Molded Plastic Pot - Greenhouse Megastore
      Gro Pro® Injection Molded Plastic Pot - Greenhouse Megastore
      Gro Pro® Injection Molded Plastic Pot
      Starting at $16.00
      Super Sprouter® Premium Heated Propagation Kit - Greenhouse Megastore
      Super Sprouter® Premium Heated Propagation Kit - Greenhouse Megastore
      Super Sprouter® Premium Heated Propagation Kit
      $85.99
      Gro Pro® 25 Pack Black Grow Bags - Greenhouse Megastore
      Gro Pro® 25 Pack Black Grow Bags - Greenhouse Megastore
      Gro Pro® Black Grow Bags - 1 to 30 Gallon - 25 bags
      Starting at $5.00
      General Hydroponics® 8 oz. pH Test Indicator - Greenhouse Megastore
      General Hydroponics® 8 oz. pH Test Indicator - Greenhouse Megastore
      General Hydroponics® 8 oz. pH Test Indicator
      Starting at $5.99
      General Hydroponics® MaxiBloom™ 5 - 15 - 14 - Greenhouse Megastore
      General Hydroponics® MaxiBloom™ 5 - 15 - 14 - Greenhouse Megastore
      General Hydroponics® MaxiBloom™ 5-15-14
      Starting at $12.69
      Botanicare® Cal - Mag Plus™ 2 - 0 - 0 - Greenhouse Megastore
      Botanicare® Cal - Mag Plus™ 2 - 0 - 0 - Greenhouse Megastore
      Botanicare® Cal-Mag Plus™ 2-0-0
      Starting at $14.99
      Gro Pro® Blow Molded Plastic Pot - Greenhouse Megastore
      Gro Pro® Blow Molded Plastic Pot - Greenhouse Megastore
      Gro Pro® Blow Molded Plastic Pot
      Starting at $7.25
      Super Sprouter® Double Thick 1020 Trays - Greenhouse Megastore
      Super Sprouter® Double Thick 1020 Trays - Greenhouse Megastore
      Super Sprouter® Double Thick 1020 Trays
      Starting at $18.45
      Sold Out
      Shear Perfection® Platinum Stainless Bonsai Scissor - Greenhouse Megastore
      Shear Perfection® Platinum Stainless Bonsai Scissor
      $7.79
      Grower's Edge® Soft Garden Plant Tie - Greenhouse Megastore
      Grower's Edge® Soft Garden Plant Tie - Greenhouse Megastore
      Grower's Edge® Soft Garden Plant Tie
      $28.45
      Grower's Edge® Aphid Whitefly Sticky Trap - Greenhouse Megastore
      Grower's Edge® Aphid Whitefly Sticky Trap - Greenhouse Megastore
      Grower's Edge® Aphid Whitefly Sticky Trap
      $4.73
      EcoPlus® Eco Air Single Outlet Commercial Pump - Greenhouse Megastore
      EcoPlus® Eco Air Single Outlet Commercial Pump - Greenhouse Megastore
      EcoPlus® Eco Air Single Outlet Commercial Pump
      Starting at $47.29
      General Hydroponics® FloraPro™ Bloom 7 - 12 - 27 - Greenhouse Megastore
      General Hydroponics® FloraPro™ Bloom 7 - 12 - 27 - Greenhouse Megastore
      General Hydroponics® FloraPro™ Bloom 7-12-27
      Starting at $24.15
      Super Sprouter® 72 Cell Square Plug Insert Tray - Greenhouse Megastore
      Super Sprouter® 72 Cell Square Plug Insert Tray
      Starting at $25.45
      Super Sprouter® AirMax Tray Insert - Greenhouse Megastore
      Super Sprouter® AirMax Tray Insert - Greenhouse Megastore
      Super Sprouter® AirMax Tray Insert
      Starting at $20.50
      General Hydroponics® FloraPro™ Calcium + Micros 14 - 0 - 0 - Greenhouse Megastore
      General Hydroponics® FloraPro™ Calcium + Micros 14 - 0 - 0 - Greenhouse Megastore
      General Hydroponics® FloraPro™ Calcium + Micros 14-0-0
      $65.99
      EcoPlus® Eco Air Adjustable Air Pump - Greenhouse Megastore
      EcoPlus® Eco Air Adjustable Air Pump - Greenhouse Megastore
      EcoPlus® Eco Air Adjustable Air Pump
      Starting at $12.49
      Hydro Flow® Premium Vinyl Tubing - Greenhouse Megastore
      Hydro Flow® Premium Vinyl Tubing - Greenhouse Megastore
      Hydro Flow® Premium Vinyl Tubing
      Starting at $25.79
      General Hydroponics® Flora Series® Quart Trial Pack - Greenhouse Megastore
      General Hydroponics® Flora Series® Quart Trial Pack
      $33.20
      Grower's Edge® Soft Mesh Trellis Netting - 6 in. Squares - Greenhouse Megastore
      Grower's Edge® Soft Mesh Trellis Netting - 6 in. Squares - Greenhouse Megastore
      Grower's Edge® Soft Mesh Trellis Netting - 6 in. Squares
      Starting at $7.85
      Mother Earth® LiquiCraft Grow™ 4 - 3 - 3 - Greenhouse Megastore
      Mother Earth® LiquiCraft Grow™ 4 - 3 - 3 - Greenhouse Megastore
      Mother Earth® LiquiCraft Grow™ 4-3-3
      Starting at $16.25
      EcoPlus® Convertible Bottom Draw Water Pump - Greenhouse Megastore
      EcoPlus® Convertible Bottom Draw Water Pump - Greenhouse Megastore
      EcoPlus® Convertible Bottom Draw Water Pump
      Starting at $31.39
      General Hydroponics® FloraPro™ Grow 10 - 12 - 22 - Greenhouse Megastore
      General Hydroponics® FloraPro™ Grow 10 - 12 - 22 - Greenhouse Megastore
      General Hydroponics® FloraPro™ Grow 10-12-22
      Starting at $21.49
      General Hydroponics® Terpinator® 0 - 2 - 4 - Greenhouse Megastore
      General Hydroponics® Terpinator® 0 - 2 - 4 - Greenhouse Megastore
      General Hydroponics® Terpinator® 0-2-4
      Starting at $90.49
      Botanicare® Silica Blast™ 0 - 0 - 0.5 - Greenhouse Megastore
      Botanicare® Silica Blast™ 0 - 0 - 0.5 - Greenhouse Megastore
      Botanicare® Silica Blast™ 0-0-0.5
      Starting at $14.05
      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