My in ground Cara Cara (11-ft. tall X 11-ft. wide is in full flower, with approximately 80 of the flowers now fully open. This is the best flowering year since the tree was planted. I foliar sprayed the tree with low biuret urea last January, From the very beginning of flowering I have been very careful to keep the tree well watered. A dry period during a tree's flowering, will GREATLY reduces the potential harvest. A dry tree will rapidly drop some or most of the its flowers depending on the duration of drought. In approximately 10 days to two weeks, the tree will go into the EARLY DROP period, dropping the flowers and small fruitlets that the tree does not have enough energy to bring the fruit to maturity, this is a normal procedure. If every flower developed into a fruit, and the tree held on to the fruit, the tree would be crushed under its own weight. After the early drop is complete, it is then important to once again foliar spray the tree with low biuret urea. The second spray will both increase the size of the fruit, and help the tree to retains the maximum amount of fruit without diminishing fruit size.
Other trees now in full flower, Dekpon (Flowers 20 percent fully open) Xie Shan (flowers now 30 percent fully open), Valentine (tons of flowers, only 10 percent fully open), marsh grapefruit (good flowering 20 percent fully open) and a small page mandarin that has a lot of flowers, but due to the young tree's size I will let it only set two fruit. All of the trees listed in this post are in ground trees.