Just hopped over from the (now dead) BBC website so hope I've arrived at the correct forum for this query.....
I have recently sown loads of seeds (flowers: stocks, sweet peas, cosmos, plus some thyme) which have all come up beautifully and really should be outside now on my balcony (south facing in London). My question is, as it has been very nippy of late, is it still too cold to put them outside? Now that they are developed and growing nicely, are they hard enough to weather the weather? Is there a minimum night temperature I should be aware of, say, 5 degrees or so - I can't take them out and bring them in again every day, there are just too many.
All replies gratefully received,