When is best time to transplant Cassiia fistula tree?

Question

Tree is 2 years old planted from seed into ground. I have 3 tall ones 8 ft and 4 small. Concern is they are crowded. Have not bloomed yet. Thanks

Answer 1

As a rule of thumb, Spring is the best time of year for transplanting.

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