The sooner the better. Cool, moist conditions when they have little foliage is a perfect time for them to form roots and settle in. Go for it.

I have a similar question, but my baby plants I bought about 3 weeks ago at a discount store. They are real babies.
They are about 6" tall, and very thin, but growing, growing growing.

When should I put them in the ground? They currently are sitting in a window sill getting morning sun and seem happy.

My conditions are the same as Janegael in CT. I'm South of Boston.

Any info is appreciated! Thanks.

Tulipsmiles, usually for tiny plants just bought you need to let them develop some roots before you put them in the ground. There is a very good chance your plants are in a peatmoss mix & roots do not fill the pot. They have hardly any roots right now. They will have a much better start if you put them in a gallon container & let them grow for a good part of the summer & plant them in the ground late summer. On the other hand there is no rule you can't plant in the ground but you will need to take good care of them & don't expect much from them. They will be slow starting out. I have done it both ways. The choice it yours.

That is exactly what I needed to know -thanks for the info! I will put them in gallon containers and will plant them in the ground later in the season.
Thanks for your help!

Tulip I was able to get gallon pots at a garden center for free. They were just sitting on the trash. I used good soil and compost and buried them up to the rim. They all seem to have made it through the winter and where I had one little sprout last year I now have four or five poking up this year.

Good luck with your babies!
Jane

Wonderful! Thanks for the info. I will be on the look out for the gallon containers. (I might even have some around here, somewhere...)
I twill bury them deep and plant when they are bigger. Fingers crossed!
Thanks Jane.