Macadamias
A macadamia orchard thrives best in a mild, frost-free, subtropical climate with at least 50 inches of rain annually with minimal shade, but good protection from strong winds. It's no wonder the production of macadamias is tiny in comparison to other nuts!
Finding suitable places to grow macs is hard enough, and then you have to shell the nut. Only commercial shelling equipment can manage to crack the shell without consistently breaking the kernel inside.
The macadamia is considered a gourmet delicacy, ranking as one of the most delicious and expensive nuts.