SOIL BLOCK MIX RECIPE

2” MINI or 4” MAXI BLOCKS

Gather the following tools prior to your project:

  • Large bushel-sized wheelbarrow or other container for mixing
  • 1 “bucket” which measures 10-quarts and 5-quarts (half bucket)
  • trowel or other mixing implement; (or hands, with or without gloves)
  • sifting screen made with ¼” hardware cloth or minnow trap

INGREDIENTS

IMPORTANT:
All ingredients should be screened to 1/4” before measuring and adding to the mix.

    • 1 ½ buckets peat OR half peat/half coco peat
    • 1 bucket compost, thoroughly decomposed (I always use purchased compost which is more consistent than my homemade compost. I buy EKO Compost, available in CO at big box stores & garden centers.)
    • 2 1/4 cups Base Fertilizer (see below)
    • 1 bucket perlite
    • ½ bucket good garden soil (or more compost)

          BASE FERTILIZER: Mix all ingredients together well.

      • ½ cup blood meal, feather meal, cottonseed meal, shrimp or crab meal, or alfalfa meal
      • ½ cup colloidal phosphate (soft rock phosphate)
      • ½ cup greensand
      • ½ cup glacial rock dust or mined rock dust
      • ¼ cup agricultural lime (powdered)

INSTRUCTIONS

Mix together the Base Fertilizer and set aside
Mix together the peat and compost
Add the Base Fertilizer and mix well
Add the perlite and mix well
Add the good garden soil and mix well

To learn how I use this mix to make soil blocks for starting my seedlings, click below.

For “Micro” Blocks, use the recipe found here: MICRO BLOCK MIX