Don't plant them now because you won't be giving them a head start, you'll probably just weaken them. Spring planting is always the safest, and in most areas fall planting is acceptable. I plant my stuff in the ground religiously in the late summer (early Sept for me), and have had nothing but tremendous results. Most plants have an explosion of root growth in the fall. But in my climate, we don't have to worry too much about the ground freezing more than an inch or two. In your climate this might kill the tender new roots, so I'd advise asking someone local.