When is the wedding?

Also, where is the wedding?

Not every climate will support growing the compact, low evergreen azaleas outdoors later.

It depends on the climate. You need to do a little homework on the varieties of azaleas that you like and whether they will grow in the climate where they will be planted. So variety and geographical location are essential information. Next, you can't just plunk an azalea in the ground and expect good results. They have needs like excellent drainage, partial shade, a good mulch and a suitable climate.

Here is a link that might be useful: How to grow azaleas and their problems.