The story about the origin of the name "Lychee Nuts" is indeed true. As far as production, most of my grower friends here in south Florida are lychee-less this year, but this is my best crop of Hak Ips and Sweet Hearts in 10 years, over 200 pounds on my Hak Ip. I also have a good crop of Sweet Cliffs, but they are very small. I attribute my success to the application of 100 pounds of 0-0-50 last October. I also have a bumper crops of mangos that are near my lychee trees. I also spread a lot of ash around my trees from my outdoor fireplaces and chimeas. Can't be sure about this theory, but the extra potassium sure didn't hurt.