When do i plant outside?

It's my first grow, one seed, thought i'd give it shot. It's currently about 7mm tall so early doors atm. 5 days from plant. I have a spot out side to plant it but what is the earliest I can plant it outside UK? Any help would be great. A real novice!

make sure u put somekind of fence of animals will dig em up or deer will eat em, u should of had em out a while ago but u wiil be ok. good luck

You can put it out anytime now.

usualy toward the end of April like22-25th i like using those dates personaly but we r past that for GOOD vege,leaving u with a taller or bushier plant depending on how you top her.