Someone here may give you an answer (although a good answer is going to be somewhat complex), but the question is probably better suited for the Professional Gardener Forum. This kind of thing is discussed frequently there. You might also do a search for similar threads there.

I guess whacky weed is out of the question? LOL

Here is a link that might be useful: The Professional Gardener Forum

If it is blooming, they will buy it. You will need to do the research with the sale dates in mind, and will your plants be in bloom at that time. The nursery that has their poinsettias come into bloom after New Years will not generally find a market. Al