So I have a rather large garden that I want to fill with colour this year. Currently it is just mud turning it back into a garden from a lawn.
I have an old greenhouse that I will use to start my plants off. But if I wanted to start early say in the next two weeks would the following work ?
Start the seedlings off in seed trays with a clear propagator roof on, and a soil heating cable under them buried in sand. Then once the seeds POP. Move them off of the heat and put them on the racks in the greenhouse for for the next 6-8 weeks. I have space for maybe 50 trays in total (8 trays to a shelf ish.)
So I would like to start up a rotation and get the racks in the green house filled so that in 6-8 weeks I can take off one row at a time and that shelf will be ready to plant out in the garden. ready to move everything in the greenhouse up on and start a new tray of seedlings.
Would this work ? or will they not survive being taken off the heat mat and left on the rack ? This will be in north of France zone 9a. Should I put a little heater in the greenhouse also ?