Are you giving the lychee tree a 2-3 month dormancy period with little water? I believe this
is the missing ingredient. I read last year about people putting bleach on their longans
and last year I watered 3-4 times a week in October, twice a week in November, and once a week
in December and January and I had two trees filled with longans this year. No Bleach! I also found
a longan tree growing at someone's house and he never waters, fertilizes, or does anthing to his longan tree
and every year it's loaded? This year my Ohia lychee is a little smaller then yours but I am waterig
less now like the longans? The trees need a dormant period and when the winter cold snaps hit the tree will
be fine if it is dormant. If it is flushing new growth it will burn the tree and you may not get fruit that year?
Now this year my concern is we have had a cool period between the end of November and now including 17
days in the 40s. There is an 80% chance to have an EL Nino year and the last El Nino I got 10 1/2" of rain in January.
If this happens the trees will flower and then if we get hit with a cold night, the fruit could be in jeopardy.
It's always different every year in 9b but I keep hearing people trying to induce flowering of lychee/longans.
Just like the mangos they need a couple months of dormancy especially if there is no chill?