Jack's Classic Fertilizer Retailer - Robert Knopp in Severn (Gardening Fertilizer ) - Location & Hours

Store Details

560 Old Oak Road
 Severn, Maryland 21144

Phone: (410) 969-7518

Map & Directions   Website

Regular Store Hours


Store hours may vary due to seasonality.

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Product Highligts

  • Jack's Classic All Purpose 20-20-20
  • Jack's Classic Blossom Booster 10-30-20
  • Jack's Classic Petunia FeED 20-6-22
  • Jack's Classic Tomato FeED 12-15-30
  • Jack's Classic Acid Special 17-6-6
  • Jack's Classic Hydrangea Blue 7-3-3
  • Jack's Classic Citrus FeED 20-10-20
  • Jack's Classic Palm Food 16-5-25
  • Jack's Classic Houseplant Special 15-30-15
  • Jack's Classic African Violet 12-36-14
  • Jack's Classic ClassiCote™ with Crystal Green® 15-8-23
  • Jack's Classic Orchid Liquid 7-5-6
  • Jack's Classic Orchid Bloom Booster 3-9-6
  • Jack's Classic Orchid Special 30-10-10
  • Jack's Classic Dynamic Duo 20-20-20 & 10-30-20
  • Jack's Classic EXACT MIX Hose End Sprayer

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