That’s an option, but not in my climate, by the time they root, they’re too far behind to fruit. I trim off a few branches and bury the suckers usually.

There was a couple cultivars that didn’t sprout, I’m still giving them some more time.

The issue here is the 90 day frost free days. We can get up to 120, but that’s doubtful, and peppers also stunt under 15c, so long before frost is an issue. So you need decent sized plants to throw out at the end of May. Anything that continues into Sept and still produces is bonus.

Most tomatoes also stunt under 10c, so without extra cover, your growing days for these plants are a couple months at most.

Edit not my province, but great info.

Most started getting their first true leaves when we transplanted, but I more go when the roots start to break out of the cube and grow into the bottom, the direct heat can harm them. Or when they start getting too tall for the dome. I did one transplant session instead of multiple as they came ready, so some were early, some were late.