Q.Problem With Coral Tree
My loved Ciral Tree has all its leaves going yellow, I live in Cyprus, I have been following advice re watering (not to do it!) and it is usually beautiful, this year only 1 little flower so far. help?
Certified GKH Gardening Expert
My first suspicion would be a pH imbalance.
Since these are, technically, legumes- They will harvest their own nitrogen. This means that feeding is completely unnecessary. This leaves pH in question. If it is too low, it will lock out phosphorus and potassium. This will affect flowering. When checking, it is best to keep the soil within a range of 5.5 to 7. These articles will help you to test your soil:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
This article will give you more information on the care of the tree:
https://www.gardeningknowhow.com/ornamental/trees/coral-tree/coral-tree-information.htm