What Are Kinds Of Outdoors Plants I Have Just Received A Hydrangea , Which Is In Bloom When Can I Plant It Outdoors?

I have just received a hydrangea , which is in bloom when can i plant it outdoors? - what are kinds of outdoors plants

What is the best time to plant outside.
He is now in full bloom. what type of assistance needed (a lot of sun, some ,????) SO
I cut off the flowers, then the plant?