Does anyone know of any online/mail order nursery that sells ungrafted bundles of any of the clonal rootstocks that are popular for commercial avocado growers? I don't mean the newest/unreleased/patented ones, I mean stuff like Toro Canyon, Thomas, Duke7, etc.
I don't mind if there's a reasonable minimum order requirement, but I couldn't find anyone who is selling them, period, other than local deliveries to commercial orchards in CA as part of custom graft orders.
I'd love to add a dozen or two of those to my cold hardiness trials here, along with the seedlings I've been starting, but for some reason clonal rootstocks seem to be kept under lock and key.