Wow, you are going to be busy. Outside is the way to go for most of us. Unless you have a greenhouse, I would be sure to put them outside. As a rule, I like to get mine in the spring and summer and plant them outside with some time to acclimate and grow a bit. However, it should not matter when you plant healthy plants, as long as the growing conditions are Ok (not too wet, not too dry) and there are no troublesome triffids to deal with. The professionals, who sell show quality plants, will use unheated greenhouses or Alpine houses which allow them to better control growing conditions and provide protection from variable weather and the passing pests.
We will want to see lots of pictures, both before and after!
