A problem that's been posted a few times might be an opportunity for you... some people have had plants start flowering at 4" height. If not corrected, the plants start bearing fruit too soon, stunting the plant.
The cause of this quirk? They were grown in an environment where the night-time temperatures were about as warm as the day-time. If you maintain the young plants at about 75°F, night and day, you should stimulate early flowering. Please note: i don't know if all plants of all varieties will perform in this fashion. Insufficient data.
There's no way you'll get anything like a bumper crop... but you may get at least a sample of some varieties that are new to you.
So far, every thing i've observed suggests that any of these plant that are raised this way should perform normally in their second year, if over-wintered.
I'll make a wild guess here: i think that spider mites might like warm days AND nights, too... spray with plain (warm, not cold) water several times a week as a preventive measure. Wet the undersides of the leaves, too.