I got ds one of those tins from Tesco to grow sunflower seeds in. It says after a couple of weeks, remove all but the 3 strongest looking seedlings. Thing is, I got covid then ds had a little op, so it’s been closer to 4 weeks and they’ve all sprouted equally and the tin is quite crowded.
I’m worried about trying to remove them and destroying the roots! Any tips, as I’m not an experienced gardener at all.