Sweet pea seedlings too big already?
Hello. I planted sweet pea seeds a few weeks ago and since then have had them sitting on a sunny windowsill inside (I don’t have a greenhouse). They have grown very enthusiastically since then but unfortunately I live in the central belt of Scotland and yet again there is snow on the ground so I suspect it’ll be a while until I can plant them out. I have heard about nipping them out but I’m not sure if this is something I should do, or even how I do it. I’ve attached photos here (please note that this is not the sunny windowsill, just the watering windowsill!) and I hope that someone can give me some advice on what I should do with them between now and planting out, in what is likely to be at least a month or so away. Many thanks in advance.