Moving seedlings to an unheated greenhouse
simonDwwwNDCx Posts: 2
I have seedlings on a sunny windowsill that are approximately 2"-3" tall, a mixture of dahlia, cosmos, chilli. I also have an unheated greenhouse. When should I move the seedlings to the greenhouse? (I live in the south east)
If not, you could keep them in the greenhouse during the day and bring them back in overnight until things warm up a bit.
You may find a maximum/ minimum thermometer useful, and l also have a gizmo in the lounge that has a warning light if the temperature in the greenhouse drops to 2 degrees C or below.
I daresay there's an app somewhere as well
Dahlias and cosmos are hardier but seedlings won't be happy below 5 to 10C I shouldn't think.
"We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
The night time temperatures always seem to be colder than the ones the Met Office/BBC suggest for my area when I type in my post code so it's hard to predict. I am in SE London.
I always fleece at the moment whatever the forecast. Even those seedlings which have only recently germinated ( in a heated propagator ) benefit from the light ( and sun if we are lucky ) as the only place for my propagator is by a North facing window.
The cool night temps may well set back growth somewhat but they will soon catch up as the days lengthen.
It really does depend on your location as to whether you go for heat or light with seedlings.
I am going to have to try and off load lots of tomato plants this weekend if I am well enough. (Day 6 Covid and still very weak... but itching to do some gardening, albeit of the sitting down variety.)