School & Institutional Supplies

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      822 products
      General Organics® BioThrive® Bloom 2 - 4 - 4 - Greenhouse Megastore
      General Organics® BioThrive® Bloom 2 - 4 - 4 - Greenhouse Megastore
      General Organics® BioThrive® Bloom 2-4-4
      Starting at $13.89
      Myco Chum® Premium Microbe Food - Greenhouse Megastore
      Myco Chum® Premium Microbe Food - Greenhouse Megastore
      Myco Chum® Premium Microbe Food
      Starting at $17.99
      Sustane® 6 lb. Bolster® MycoBio™ Microbial Inoculum - Greenhouse Megastore
      Sustane® 6 lb. Bolster® MycoBio™ Microbial Inoculum - Greenhouse Megastore
      Sustane® 6 lb. Bolster® MycoBio™ Microbial Inoculum
      $65.45
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      GreenGro™ Biologicals Premium Ultrafine Mycorrhizae - Greenhouse Megastore
      GreenGro™ Biologicals Premium Ultrafine Mycorrhizae
      Starting at $43.74 $48.60

      Save $4.86

      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 $13.29
      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
      Wetsel Seed™ Lettuce Hanson Improved Seed - Greenhouse Megastore
      Wetsel Seed™ Lettuce Hanson Improved Seed - Greenhouse Megastore
      Wetsel Seed™ Lettuce Hanson Improved Seed
      $1.29
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      GreenGro™ Nature's Brix 0 - 0 - 2 - Greenhouse Megastore
      GreenGro™ Nature's Brix 0-0-2
      Starting at $17.81 $19.79

      Save $1.98

      Grodan 3/4 in. Grow - Chunks - Greenhouse Megastore
      Grodan 3/4 in. Grow-Chunks
      $45.99
      Jack's Nutrients 8 - 10 - 26 Strawberry Part A - Greenhouse Megastore
      Jack's Nutrients 8-10-26 Strawberry Part A
      $96.99
      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
      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
      Wetsel Seed™ Seven Top Turnip Seed - Greenhouse Megastore
      Wetsel Seed™ Seven Top Turnip Seed - Greenhouse Megastore
      Wetsel Seed™ Seven Top Turnip Seed
      $1.99
      Mother Earth® Subterra™ Root Booster 0 - 1 - 1 - Greenhouse Megastore
      Mother Earth® Subterra™ Root Booster 0 - 1 - 1 - Greenhouse Megastore
      Mother Earth® Subterra™ Root Booster 0-1-1
      Starting at $8.99
      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
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      Botanicare® CocoPro™ Cubes - Greenhouse Megastore
      Botanicare® CocoPro™ Cubes - Greenhouse Megastore
      Botanicare® CocoPro™ Cubes
      Starting at $77.39
      Botanicare® CocoPro™ Propagation Plugs - Greenhouse Megastore
      Botanicare® CocoPro™ Propagation Plugs - Greenhouse Megastore
      Botanicare® CocoPro™ Propagation Plugs
      Starting at $200.00
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      Grodan Gro - Block Media Strips - Greenhouse Megastore
      Grodan Gro-Block Media Strips
      Starting at $10.00 $12.50

      Save $2.50

      Sunspot Dwarf Sunflower Seed Packet - Greenhouse Megastore
      Sunspot Dwarf Sunflower Seed Packet - Greenhouse Megastore
      Sunspot Dwarf Sunflower Seed Packet
      $1.79
      10 Cell Oasis® Rootcubes® Strips - 190 Strips
      $132.00
      Earth Science® 6 lb. Pouch Moorganite All Purpose Fertilizer - Greenhouse Megastore
      Earth Science® 6 lb. Pouch Moorganite All Purpose Fertilizer
      $15.99
      Botanicare® Sweet® Berry Plant Food - Greenhouse Megastore
      Botanicare® Sweet® Berry Plant Food - Greenhouse Megastore
      Botanicare® Sweet® Berry Plant Food
      Starting at $20.24
      Botanicare® Clearex® Rinsing Solution - Greenhouse Megastore
      Botanicare® Clearex® Rinsing Solution - Greenhouse Megastore
      Botanicare® Clearex® Rinsing Solution
      Starting at $9.89
      Western Pulp White Mache Floral Containers - Jardiniers - Greenhouse Megastore
      Western Pulp White Mache Floral Containers - Jardiniers - Greenhouse Megastore
      Western Pulp White Mache Floral Containers - Jardiniers
      Starting at $94.50
      Super Sprouter® 78 Cell Stonewool Tray Insert - Greenhouse Megastore
      Super Sprouter® 78 Cell Stonewool Tray Insert - Greenhouse Megastore
      Super Sprouter® 78 Cell Stonewool Tray Insert
      $15.99
      ferti - lome® Tree & Shrub Food 19 - 8 - 10 - Greenhouse Megastore
      ferti-lome® Tree & Shrub Food 19-8-10
      $29.19
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      Earth Science® 24 oz. Udder Magic Concentrated Plant Food - Greenhouse Megastore
      Earth Science® 24 oz. Udder Magic Concentrated Plant Food
      $13.67 $15.19

      Save $1.52

      ferti - lome® Blooming & Rooting Soluble Plant Food 9 - 58 - 8 - Greenhouse Megastore
      ferti-lome® Blooming & Rooting Soluble Plant Food 9-58-8
      $62.15
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      Pennington® Smart Seed® Dense Shade Grass Seed & Fertilizer Mix - Greenhouse Megastore
      Pennington® Smart Seed® Dense Shade Grass Seed & Fertilizer Mix - Greenhouse Megastore
      Pennington® Smart Seed® Dense Shade Grass Seed & Fertilizer Mix
      $15.98 $21.30

      Save $5.32

      Botanicare® CocoPro™ Bag - Greenhouse Megastore
      Botanicare® CocoPro™ Bag - Greenhouse Megastore
      Botanicare® CocoPro™ Bag
      Starting at $55.80
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      Pennington® Smart Patch Sun & Shade North Grass Seed Mix - Greenhouse Megastore
      Pennington® Smart Patch Sun & Shade North Grass Seed Mix - Greenhouse Megastore
      Pennington® Smart Patch Sun & Shade North Grass Seed Mix
      Starting at $17.35 $21.69

      Save $4.34

      Vego Garden® EZ Self - Watering Tomato Planter with Trellis - Greenhouse Megastore
      Vego Garden® EZ Self - Watering Tomato Planter with Trellis - Greenhouse Megastore
      Vego Garden® EZ Self-Watering Tomato Planter with Trellis
      $124.00
      General Hydroponics® Diamond Nectar® 0 - 1 - 1 - Greenhouse Megastore
      General Hydroponics® Diamond Nectar® 0 - 1 - 1 - Greenhouse Megastore
      General Hydroponics® Diamond Nectar® 0-1-1
      Starting at $15.79
      Bonide® Liquid Iron Complex Concentrate - Greenhouse Megastore
      Bonide® Liquid Iron Complex Concentrate
      $16.49
      ferti - lome® Tree & Shrub Drench Concentrate - Greenhouse Megastore
      ferti - lome® Tree & Shrub Drench Concentrate - Greenhouse Megastore
      ferti-lome® Tree & Shrub Drench Concentrate
      Starting at $14.80
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      GreenGro™ 2 lb. Bag Flower Finisher - Greenhouse Megastore
      GreenGro™ 2 lb. Bag Flower Finisher
      $39.14 $43.49

      Save $4.35

      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
      Botanicare® Hydroplex® Bloom 0 - 10 - 6 - Greenhouse Megastore
      Botanicare® Hydroplex® Bloom 0 - 10 - 6 - Greenhouse Megastore
      Botanicare® Hydroplex® Bloom 0-10-6
      Starting at $27.00
      Tomato Roller Kit for Palram - Canopia Greenhouses
      $71.30
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      Pennington® Smart Patch Dense Shade Grass Seed Mix - Greenhouse Megastore
      Pennington® Smart Patch Dense Shade Grass Seed Mix - Greenhouse Megastore
      Pennington® Smart Patch Dense Shade Grass Seed Mix
      $16.27 $21.69

      Save $5.42

      Peters Liquid S.T.E.M. Chelated Micros
      $181.00
      General Organics® BioBud® 0.5 - 0.1 - 1 - Greenhouse Megastore
      General Organics® BioBud® 0.5 - 0.1 - 1 - Greenhouse Megastore
      General Organics® BioBud® 0.5-0.1-1
      Starting at $31.49
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      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 $9.17 $10.19

      Save $1.02

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      Jack's Professional® Interiorscape Special 21 - 7 - 16 - Greenhouse Megastore
      Jack's Professional® Interiorscape Special 21-7-16
      $97.20 $108.00

      Save $10.80

      Grower's Edge® Green Trellis Netting - Greenhouse Megastore
      Grower's Edge® Green Trellis Netting - Greenhouse Megastore
      Grower's Edge® Green Trellis Netting
      $465.00
      Sale
      ferti - lome® Triple Action Plus - Greenhouse Megastore
      ferti-lome® Triple Action Plus
      $14.39 $15.99

      Save $1.60

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      Western Pulp White Mache Floral Containers - Centerpiece - Greenhouse Megastore
      Western Pulp White Mache Floral Containers - Centerpiece - Greenhouse Megastore
      Western Pulp White Mache Floral Containers - Centerpiece
      Starting at $105.00
      Dramm Aeration/Agitation Bucket
      $912.00