My Orchid Tree Only Blooms At Bottom

Question

I topped it a few years ago. Since then it only blooms at bottom. Is there anything I can do to fix it? It looks healthy

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Answer 1

It is still a little early in the year for good blooming, but I suspect there to be too much nitrogen in the soil. Technically, these are legumes, and will draw their own nitrogen from the atmosphere, fixing it into the soil.

This can be offset with phosphorus and potassium fertilizers.

Another thing is that they will prefer to flower after a dry spell, then a wet spell. It may be that it is at the mercy of the weather.

https://www.gardeningknowhow.com/ornamental/trees/orchid-tree/growing-orchid-trees.htm

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