Seed Starter Mix

Purple Cow Seed Starter Mix is an OMRI Listed, living media containing beneficial biology and nutrients to get your plants off to a healthy start. Seed Starter Mix is a fine-textured blend that promotes rapid germination and vigorous seedlings. Our mix includes Purple Cow Activated Compost, sphagnum peat, perlite, vermiculite, OMRI Listed granular fertilizer and mineral complex. It is intended for seed starting in trays, blocks or small containers - balancing drainage and wicking action to keep roots moist. 1 Cubic Foot bags, and 12 Quart bags, now available on Amazon!

Product Specifications

Purple Cow Compost
Sphagnum Peat Moss
Rock Minerals/Sea Minerals
OMRI Listed Fertilizer
More Benefits of PCO Seed Starter Mix
  • Increased germination
  • Good seedling vigor
  • Sturdy seedlings at transplanting
  • Save money with less watering and fertility inputs
  • More effective cultivation due to compact, healthy upright plants
  • Crafted on our computerized blending line for consistent media every time

Seed Starter Mix Info Sheet

Available In:
12 Quart Bags
1 Cubic Foot Bags
2 Cubic Yard Supersacks
"We have tried every other seed starter out there but always come back to Purple Cow...Nothing grows like Purple Cow." — P.T. BJERKE, SUPERGARGE! FOODS

(Approximate Volume)
1 cu ft bag fills:
26 QTS
1 Supersack fills:
1404 QTS
3" pots or larger Use PCO Potting Mix Use PCO Potting Mix
Plug Flats
288 cells 11 flats 625 flats
200 cells 10 flats 540 flats
128 cells 7 flats 415 flats
72 cells 6 flats 330 flats
50 cells 5 flats 270 flats
Pro Trays
72 cells 7 flats 415 flats
38 cells 6 flats 340 flats
24 cells 9 flats 475 flats