They require so much work in terms of maintenance and the manual labor involved with harvesting is insane compared to other common crops.
I am curious what are the extra maintenance requirements for yangmei when growing commercially outside of the harvest season?
Harvest season incurs much of the cost but because Yangmei is such a new crop, the initial investment for grafted trees, soil conditioning, consultations, etc are also very expensive. Depending on what rootstock you use, the soil requirements are different and certain rootstocks take longer to reach commercial production.
Once the trees are in ground, not all trees may survive so you have to purchase replacement trees. Once your trees are large and in full production, there is a lot of costs involved with pruning the trees because they grow so vigorously.
That’s not even the half of it, I do some Yangmei consulting and don’t want to get into the details but just before harvest season, if you haven’t prepared properly, you could easily lose much of your crop.