Q.Do Jacarandas bloom every year?
I germinated 5 jacaranda seeds and kept them in a restricted container for 7 years, then decided to plant them in the ground in zone 9a.The second year I forced a bloom by smacking the 5 trunks several times with a baseball bat. The tree did not bloom this spring despite several bloom booster fertilizers(2-10-10- and bone meal.) Is there any method to start a bloom this late?
These articles will give you a few more options on getting blooms!
https://www.gardeningknowhow.com/ornamental/trees/jacaranda/potted-jacaranda-trees.htm
https://www.gardeningknowhow.com/ornamental/trees/jacaranda/jacaranda-tree-not-blooming.htm