Our full notes on the Agaricus subrufescens:
Plant the spawn in layers after the soil temperature is going to remain above 50°F for the rest of the season.
Half a bag of spawn does a 9 sq ft bed.
Layers:
- 4" finished compost
- Moist enough to squeeze a drop of water out & stick into a ball
- Egg-sized pieces of spawn, 4-6" apart
- Do not crumble spawn
- 1" finished compost
- 3-4" straw or wood chips