New Seed Box Hot Bed

Posts

• Fairygirl west central ScotlandPosts: 46,981

  24 February

  That's what the plastic lid will do when it's over soil that also has heat. Same principle as a plastic bag over a pot on a warm windowsill 
  If you've already sown seed, you'll need to open a vent on the lid [or move it slightly to allow a gap] to help mitigate the amount of moisture. You'd remove it completely when seed germinates. 

  It's a place where beautiful isn't enough of a word....
  
  
  

  0
• Pete.8 Billericay, EssexPosts: 8,852

  24 February

  I put about 1" of sand in the base of my propagators. It holds heat so keeps the temperature stable and keeps the moisture level high but I always keep a couple of the vents open.
  Once seed germinates I open more vents.
  I also keep mine set to 24C until seed has germinated, then lower it to 22c then 20c  - but the temp. depends on what you're growing.
  With decent heat, moisture and light the plants grow quite fast.
  If you get the balance wrong and it's too humid there's a risk of damping-off disease when seedlings just keel over for no apparent reason. It is caused by fungi

  Knowledge is knowing that a tomato is a fruit.
  Wisdom is not putting it in a fruit salad.

  0
• Market Boy Posts: 78

  25 February

  Thanks.
  That info is very helpful

  0