In the first two years we did what most nurseries here do — bought in from larger growers and sold on. It worked commercially and it was miserable. We had no idea what a plant had been through before it reached us, so we could not tell a customer anything useful about it, and we could not stand behind it when it failed.
So we stopped. Now everything is propagated or grown on here for at least a season before it is listed. Adeniums are seed-raised in full rooftop sun for three years. Sansevieria divisions come off mother clumps we have kept for a decade. Avocados are grafted onto our own seedling rootstock and grown to two, four or six feet.
It means we list 131 varieties rather than a thousand, and it means some things are simply unavailable for months at a time. We think that is the right trade.