I have two plants grown from seed, one began blooming about the time I took that picture, about 2 weeks ago, the other hasn't begun yet. Both are very tall and bushy, handsome plants and great to have now that all perennials have stopped bloom and even annuals like zinnias are worn out. How to collect seeds? Any suggestions about overwinter? In my zone I don't have a lot of success with salvias making it through. I am really in zone a or b. There have been some unusually cold snaps in the past few winters, mostly Mild but it briefly went down to 9 degrees last two winters.