
from Central Illinois! I was born in Philly, family moved to West Chester when I was 3yo, lived on Phoenixville Pike, moved again to Chicagoland when I was 8yo. Looks like you are zone 6b, warmer than me. I watch Mid American Gardener, out of the University of Illinois (40 minutes north of me) and a recent recommendation for starting indoor plants was to use a small desk-type fan to harden up your starts. I used to be able to start more plants indoors, but, we live out in the country, took in 3 orphaned 3 week old kittens (almost 2 years ago) and now they dig anything that they can find, so I have to use the top of the fridge and be creative where I grow indoors in the winter.
I wait 2 weeks beyond the recommendations for transplanting. It's kinda like buying plants at a box store garden center, that are potbound and big, and putting them out in the garden. Doesn't hurt anything