Q.Why Doesn’t My Orchid Tree Bloom?
We are in zone 9 and the tree is in full sun. What does this tree need to bloom?
Certified GKH Gardening Expert
This comes down to two things: Soil nutrient content, and watering habits.
The first thing to consider will be how much nitrogen is in your soil. Too much nitrogen will halt flowering in legumes, which this tree is. A soil test will confirm:
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
Next to consider will be watering habit. During the growing season, you can water often without worry. In winter, flowering will be triggered by dry periods followed by wet periods. Testing soil moisture may be necessary:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm
This article will help you with the care of the tree:
https://www.gardeningknowhow.com/ornamental/trees/orchid-tree/growing-orchid-trees.htm
