Covered sowing is for all the seedlings prepared before April. Indeed, it would be too early to sow outdoors and your plants would risk freezing…
Technique for sowing under shelter
- Choose a spot where the temperature is warmer than 50 / 55°F (10 / 12°C), ideally around 60°F (15°C).
This spot must be well-lit, preferably in a greenhouse, but a nearby window may be enough.
- Prepare seedling soil mix with perlite to enhance drainage and air circulation.
- After that, sow your seeds using the tray-sowing method.
Smart tip about covered sowing
- Covered seedlings, to grow perfectly healthy, require 12h of light a day!