In the Northeast area close to Boston, night time temps are 45-55'F right now. When is a good time to move my seedlings outdoors?
You can do it now if you want. If theyre small sprouts, then keep an eye on the weather until they get stronger. You dont want them being in a huge rainstorm and getting washed away or anything like that. Its also a good idea to surround them with chicken wire when they're that small.