Sweet pea and foxglove sowing - in London- is it too late ?

in Plants
Hello all- i am a newbie and i fear i may have missed the boat for the sweet pea sowing ? I have just constructed the root trainers .. i dont have a cold frame- but do have a shed with a shelf , but hope to have a greenhouse by Dec 4th ...was wondering if i should plant up and leave in my cool living room until the greenhouse is ready - I had already been told no point growing the foxgloves now and to wait until Spring - should I wait for the sweet pea and foxglove until Feb time then ? i am dying to sow something !

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Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Late February is probably early enough in a warm area, but they'll need the cold frame. Don't cosset them though. Foxgloves are tougher than s. peas too.
I do mine in late March, and October if I do any in autumn, but we're at least a month behind up here.
I live in west central Scotland - not where that photo is...
I live in west central Scotland - not where that photo is...
"...I'm going to grow some sweet peas from seed and it's the middle of December which is a really good time to do it. We've done lots of experiments here at Perch Hill and we had begun to think that January is fine and even February, but this year (the last season) we sowed them earlier about this time and we saw huge benefits; the plants were stronger, they had stronger roots, better disease resistance, they didn't get mildew and they produced more flowers. I definitely think it's worth it, so if you can do it this side of Christmas or early in the New Year..."