Oops, sorry Sassybutt3fly, I forgot to answer your question.
Actually I don't know the close date for sure.
The California growers have something called Spring Trials, where people from horticulture businesses (writers, growers, sellers, etc) come and look at all the new plants they have. It's a very busy time of the year, Pacific Callas will be cleaning, setting up displays, getting bulbs ready for sale, etc.
I want to make sure we get our order in before all that madness starts. As the trials are April 6-11, I hope to get our order in by April 1 but that may be too optimistic.
I'll email Peter at Pacific Callas tonight to see what he thinks, and hopefully we can firm up the close date.