Are these tomato seedlings? Last autumn I left all the pots full of soil but composted any dead plants, I thought I’d replanted sweetpeas in last years sweetpea pot, these sprouted up last week and I didn’t pay proper attention to them until today when I noticed a new seedling that is definitely a sweetpea which made it obvious that these definitely aren’t. I had a tomato plant in one of these pots too so wondering if it had self-seeded.