

12” deep should be plenty for most veggies. But it’s not gonna be all available this year, the sticks have to break down first. So for a year or two, only use the amount of soil you put in. If it’s 6”, tomatoes and root veggies aren’t going to thrive.
If you got a dense plot, you want it deep. The roots all need their own place. So if you stuff it full, it’s gotta be able to go down instead.
I’ve got those for the 2 and 4 week starts. The 6 and 8 week starts will get root bound as they’re too small without still mid potting up.
Works for seedlings, but not the tomatoes and peppers that need to be established.
Great advice otherwise. I’ll also have a greenhouse and or cold frame next year as well. This is just a stopgap.
I do the actual germing on window table with heat mats as well, these are all seedling at this point. I don’t have the room to pot up the other domes yet -.-