Beginner Gardening: Moving my started rose from container to the earth, 1 by LuckysWife

LuckysWife wrote:
I am not a green thumb, historically, by any means, but after lots and lots of googling and many failures, last fall, I successfully started a rose from a clipping i got from my mil's beautiful white rose bush. I used the method where you keep plant the scarred cutting in a pot and top it with a mason jar until it starts growing.

It has been blooming in the pot beside my front porch since early spring, and i am in love with this plant, and also, of course, it's my baby. I'm scared to death to do something that hurts it, especially since my mil has since managed to kill the amazing plant i got my cutting from. I want to plant it in the ground, exactly where it is currently potted (since it seems to like that area o.k.), but i would like some advice from you experts on the best time and method to do this.

I live in Southeast Texas, kind of on the line between zones 8 and 9.

Thanks for any help you can offer.