Welcome to Keystone Farms Composting Worms and Castings! We are a vermiculture farm located on beautiful Keystone Lake in Oklahoma.  Our mission is to provide education and assistance to anyone who wants to improve their soil, grow healthier food or reduce waste through composting.

Worm Castings

  • Water-soluble allowing plants to quickly and easily absorb essential nutrients and trace minerals
  • Rich in iron, sulfur, calcium, nitrogen, phosphorus and potassium
  • Improves quality of flowers, fruits, and vegetable yields

Red Wigglers

  • Most common composting worm
  • Surface feeding - above top soil
  • Adapt to various conditions (55°-90°F)

Indian Blue Worms

  • Fast composters
  • More active and prolific than red wigglers
  • Preference for warmer temperatures

European Nightcrawlers

  • Up to 3X larger than Red Wigglers
  • Complex, deep soil burrowing
  • Thrive in cooler temperatures

Comfrey Leaves

  • The leaves contain lots of nitrogen, phosphorus, and potassium
  • The leaves decompose very quickly
  • While in bloom, comfrey attracts pollinators

Worm casting tea

  • Boost plant health and improve nutrient availability
  • Increase beneficial microbial activity
  • Can be used as a foliar spray and soil drench

Urban Worm Bag

  • Official Affiliate for the Urban Worm Bag
  • Easy to assemble and use
  • Optimized for casting collection