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      Your order qualifies for free shipping when you spend $2000 or more on these qualifying items. No code needed. Ends at 11:59pm EDT on 8/31/26.

      958 products
      Dosmatic SuperDos 20 Injector - Greenhouse Megastore
      Dosmatic SuperDos 20 Injector
      Starting at $679.00
      Dosatron NDS Monitor Plumbing Kit - Greenhouse Megastore
      Dosatron NDS Monitor Plumbing Kit
      Starting at $388.00
      Dosatron NDS Flow Restrictor - Greenhouse Megastore
      Dosatron NDS Flow Restrictor - Greenhouse Megastore
      Dosatron NDS Flow Restrictor
      Starting at $70.00
      Dosatron Etatron eOne Micro-Doser System Kit - Greenhouse Megastore
      Dosatron Etatron eOne Micro-Doser System Kit - Greenhouse Megastore
      Dosatron Etatron eOne Micro-Doser System Kit
      Starting at $1,595.00
      Jack's Classic® Petunia FeED 20 - 6 - 22 - Sample Pack of 350 - Greenhouse Megastore
      Jack's Classic® Petunia FeED 20-6-22 - Sample Pack of 350
      $136.00
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      ferti - lome® Triple Action RTS - Greenhouse Megastore
      ferti-lome® Triple Action RTS
      $45.44 $50.49

      Save $5.05

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      Royal Gold Crown Jewels 5 lb. Bag Bloom 1 - 4 - 2 - Greenhouse Megastore
      Royal Gold Crown Jewels 5 lb. Bag Bloom 1-4-2
      $18.69 $21.99

      Save $3.30

      Free Shipping
      Royal Victorian Hybrid Greenhouse Kit 12 x 20 ft. with 4mm Tempered Glass Panels and 10mm Polycarbonate Roof - Greenhouse Megastore
      Royal Victorian Hybrid Greenhouse Kit 12 x 20 ft. with 4mm Tempered Glass Panels and 10mm Polycarbonate Roof - Greenhouse Megastore
      Royal Victorian Hybrid Greenhouse Kit 12 x 20 ft. with 4mm Tempered Glass Panels and 10mm Polycarbonate Roof
      $19,999.00
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      Modern Glass Greenhouse Kit with 4mm Tempered Glass and Aluminum Frame - Greenhouse Megastore
      Modern Glass Greenhouse Kit with 4mm Tempered Glass and Aluminum Frame - Greenhouse Megastore
      Modern Glass Greenhouse Kit with 4mm Tempered Glass and Aluminum Frame
      Starting at $17,249.00
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      SpaceSaver Lean - to Shed 8x4, Double Doors - Greenhouse Megastore
      SpaceSaver Lean - to Shed 8x4, Double Doors - Greenhouse Megastore
      SpaceSaver Lean-to Shed 8x4, Double Doors
      $3,299.00
      Free Shipping
      SunShed Garden Building and Greenhouse Kit 12 x 12 ft. with Glass Panels and Cedar Wood Frame - Greenhouse Megastore
      SunShed Garden Building and Greenhouse Kit 12 x 12 ft. with Glass Panels and Cedar Wood Frame - Greenhouse Megastore
      SunShed Garden Building and Greenhouse Kit 12 x 12 ft. with Glass Panels and Cedar Wood Frame
      $8,500.00
      Free Shipping
      Traditional Fivewall Polycarbonate Greenhouse Kit with 16mm Polycarbonate Panels and Aluminum Frame - Greenhouse Megastore
      Traditional Fivewall Polycarbonate Greenhouse Kit with 16mm Polycarbonate Panels and Aluminum Frame - Greenhouse Megastore
      Traditional Fivewall Polycarbonate Greenhouse Kit with 16mm Polycarbonate Panels and Aluminum Frame
      Starting at $14,718.00
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      Parkside Greenhouse Kit 8 x 10 ft. with 3mm Tempered Glass Panels and Aluminum Frame - Greenhouse Megastore
      Parkside Greenhouse Kit 8 x 10 ft. with 3mm Tempered Glass Panels and Aluminum Frame - Greenhouse Megastore
      Parkside Greenhouse Kit 8 x 10 ft. with 3mm Tempered Glass Panels and Aluminum Frame
      $11,495.00
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      Legacy Greenhouse Kit 8 x 8 ft. with Tempered Glass Sidewalls, 6mm Polycarbonate Roof and Aluminum Frame - Greenhouse Megastore
      Legacy Greenhouse Kit 8 x 8 ft. with Tempered Glass Sidewalls, 6mm Polycarbonate Roof and Aluminum Frame - Greenhouse Megastore
      Legacy Greenhouse Kit 8 x 8 ft. with Tempered Glass Sidewalls, 6mm Polycarbonate Roof and Aluminum Frame
      $9,184.00
      Free Shipping
      Texan Teaching Greenhouse Package - Greenhouse Megastore
      Texan Teaching Greenhouse Package - Greenhouse Megastore
      Texan Teaching Greenhouse Package
      $71,639.00
      Free Shipping
      Economy Starter Greenhouse Package - Greenhouse Megastore
      Economy Starter Greenhouse Package
      Starting at $26,619.00
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      Hi-Yield® Grass Killer Postemergence Grass Herbicide - Greenhouse Megastore
      Hi-Yield® Grass Killer Postemergence Grass Herbicide
      $44.06 $48.96

      Save $4.90

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      Grower Select® Empire Round Planter With Cage - Greenhouse Megastore
      Grower Select® Empire Round Planter With Cage
      Starting at $25.99
      Dosatron Nutrient Delivery System 20 GPM Unit - Greenhouse Megastore
      Dosatron Nutrient Delivery System 20 GPM Unit
      $1,026.00
      Dramm® FertiCart Portable Injector Cart - Greenhouse Megastore
      Dramm® FertiCart Portable Injector Cart
      $1,415.00
      Grow More® 20 - 20 - 20 Fertilizer - Greenhouse Megastore
      Grow More® 20-20-20 Fertilizer
      $94.79
      Dosmatic SuperDos 45 Injector - Greenhouse Megastore
      Dosmatic SuperDos 45 Injector
      Starting at $1,256.00
      Dosatron NDS Inline Monitor Kit - Greenhouse Megastore
      Dosatron NDS Inline Monitor Kit
      Starting at $1,051.00
      Free Shipping
      Livingten Insulated Greenhouse Kit 11 ft. Wide with 22mm Double Pane Glass and Aluminum Frame - Greenhouse Megastore
      Livingten Insulated Greenhouse Kit 11 ft. Wide with 22mm Double Pane Glass and Aluminum Frame - Greenhouse Megastore
      Livingten Insulated Greenhouse Kit 11 ft. Wide with 22mm Double Pane Glass and Aluminum Frame
      Starting at $51,999.00
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      GardenSaver Lean - to Shed 8x4, Single Door - Greenhouse Megastore
      GardenSaver Lean - to Shed 8x4, Single Door - Greenhouse Megastore
      GardenSaver Lean-to Shed 8x4, Single Door
      $3,299.00
      Free Shipping
      GardenSaver Lean - to Shed 8x4, Double Doors - Greenhouse Megastore
      GardenSaver Lean - to Shed 8x4, Double Doors - Greenhouse Megastore
      GardenSaver Lean-to Shed 8x4, Double Doors
      $3,299.00
      Free Shipping
      SpaceSaver Lean - to Shed 8x4, Single Door - Greenhouse Megastore
      SpaceSaver Lean - to Shed 8x4, Single Door - Greenhouse Megastore
      SpaceSaver Lean-to Shed 8x4, Single Door
      $3,299.00
      Free Shipping
      24 ft. x 48 ft. Deluxe Teaching Greenhouse Package - Greenhouse Megastore
      24 ft. x 48 ft. Deluxe Teaching Greenhouse Package - Greenhouse Megastore
      24 ft. x 48 ft. Deluxe Teaching Greenhouse Package
      $34,450.00
      Free Shipping
      SunShed Garden Building and Greenhouse Kit 8 x 12 ft. with Glass Panels and Cedar Wood Frame - Greenhouse Megastore
      SunShed Garden Building and Greenhouse Kit 8 x 12 ft. with Glass Panels and Cedar Wood Frame - Greenhouse Megastore
      SunShed Garden Building and Greenhouse Kit 8 x 12 ft. with Glass Panels and Cedar Wood Frame
      $7,499.00
      Free Shipping
      SunShed Garden Building and Greenhouse Kit 8 x 8 ft. with 6mm Twin-Wall Polycarbonate and Cedar Wood Frame - Greenhouse Megastore
      SunShed Garden Building and Greenhouse Kit 8 x 8 ft. with 6mm Twin-Wall Polycarbonate and Cedar Wood Frame - Greenhouse Megastore
      SunShed Garden Building and Greenhouse Kit 8 x 8 ft. with 6mm Twin-Wall Polycarbonate and Cedar Wood Frame
      $6,400.00
      Free Shipping
      Cathedral Victorian Greenhouse 15 x 20 ft. with 4mm Tempered Glass Panels and Aluminum Frame - Greenhouse Megastore
      Cathedral Victorian Greenhouse 15 x 20 ft. with 4mm Tempered Glass Panels and Aluminum Frame - Greenhouse Megastore
      Cathedral Victorian Greenhouse 15 x 20 ft. with 4mm Tempered Glass Panels and Aluminum Frame
      $45,999.00
      Free Shipping
      Traditional Glass Lean-to Greenhouse Kit with 3mm Tempered Glass and Aluminum Frame - Greenhouse Megastore
      Traditional Glass Lean-to Greenhouse Kit with 3mm Tempered Glass and Aluminum Frame - Greenhouse Megastore
      Traditional Glass Lean-to Greenhouse Kit with 3mm Tempered Glass and Aluminum Frame
      Starting at $12,276.00
      Free Shipping
      Sunhaven Greenhouse Kit 8 x 8 ft. with 6mm Twinwall Polycarbonate Panels and Aluminum Frame - Greenhouse Megastore
      Sunhaven Greenhouse Kit 8 x 8 ft. with 6mm Twinwall Polycarbonate Panels and Aluminum Frame - Greenhouse Megastore
      Sunhaven Greenhouse Kit 8 x 8 ft. with 6mm Twinwall Polycarbonate Panels and Aluminum Frame
      $6,915.00
      Free Shipping
      Pacific Glass Greenhouse Kit with 3mm Tempered Glass Panels and Aluminum Frame - Greenhouse Megastore
      Pacific Glass Greenhouse Kit with 3mm Tempered Glass Panels and Aluminum Frame - Greenhouse Megastore
      Pacific Glass Greenhouse Kit with 3mm Tempered Glass Panels and Aluminum Frame
      Starting at $16,179.00
      Free Shipping
      Cottage Glass Greenhouse Kit with 3mm Tempered Glass Panels and Aluminum Frame - Greenhouse Megastore
      Cottage Glass Greenhouse Kit with 3mm Tempered Glass Panels and Aluminum Frame - Greenhouse Megastore
      Cottage Glass Greenhouse Kit with 3mm Tempered Glass Panels and Aluminum Frame
      Starting at $11,867.50
      Free Shipping
      Cape Cod Glass Greenhouse Kit with 3mm Overlaps Tempered Glass Panels and Aluminum Frame - Greenhouse Megastore
      Cape Cod Glass Greenhouse Kit with 3mm Overlaps Tempered Glass Panels and Aluminum Frame - Greenhouse Megastore
      Cape Cod Glass Greenhouse Kit with 3mm Overlaps Tempered Glass Panels and Aluminum Frame
      Starting at $10,151.60
      Free Shipping
      Senior Lean-to Teaching Greenhouse Package - Greenhouse Megastore
      Senior Lean-to Teaching Greenhouse Package - Greenhouse Megastore
      Senior Lean-to Teaching Greenhouse Package
      Starting at $21,789.00
      Free Shipping
      Senior Teaching Greenhouse Package - Greenhouse Megastore
      Senior Teaching Greenhouse Package - Greenhouse Megastore
      Senior Teaching Greenhouse Package
      $38,709.00
      Free Shipping
      Collegiate Glass Greenhouse Package - Greenhouse Megastore
      Collegiate Glass Greenhouse Package - Greenhouse Megastore
      Collegiate Glass Greenhouse Package
      $54,449.00
      Free Shipping
      Cross Country Teaching Greenhouse Package - Greenhouse Megastore
      Cross Country Teaching Greenhouse Package - Greenhouse Megastore
      Cross Country Teaching Greenhouse Package
      Starting at $29,792.00
      Free Shipping
      California 30 ft. x 60 ft. Teaching Greenhouse Package with 8mm Twinwall Polycarbonate Covering - Greenhouse Megastore
      California 30 ft. x 60 ft. Teaching Greenhouse Package with 8mm Twinwall Polycarbonate Covering - Greenhouse Megastore
      California 30 ft. x 60 ft. Teaching Greenhouse Package with 8mm Twinwall Polycarbonate Covering
      $59,725.00
      Free Shipping
      Northern Starter Greenhouse Package - Greenhouse Megastore
      Northern Starter Greenhouse Package - Greenhouse Megastore
      Northern Starter Greenhouse Package
      Starting at $37,799.00
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      Grow More® Mendocino Avalanche - Greenhouse Megastore
      Grow More® Mendocino Avalanche
      $278.99 $309.99

      Save $31.00

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      Grow More® Mendocino Producer's Choice Flower Hardener 00 - 37 - 37 - Greenhouse Megastore
      Grow More® Mendocino Producer's Choice Flower Hardener 00 - 37 - 37 - Greenhouse Megastore
      Grow More® Mendocino Producer's Choice Flower Hardener 00-37-37
      $111.53 $123.92

      Save $12.39

      Foamer Ferticart - Greenhouse Megastore
      Foamer Ferticart
      $2,209.00
      Jack's Classic® ClassiCote™ 15 - 8 - 23 with Crystalgreen® - Sample Pack of 200 - Greenhouse Megastore
      Jack's Classic® ClassiCote™ 15-8-23 with Crystalgreen® - Sample Pack of 200
      $112.00