Taking plants outside from grow closet

[Ramie]

I have had my plants in the grow closet for a month now. In our growing zone, I can't put them outside until the first of June. I have the light going for 14 hours per day, which is about 3 hours under the amount of light they will get when I put them outside.

My questions. Will I have trouble with these plants going from the grow closets to the outdoors and is there anything I should be doing to prepare them. Thanks.