Flowering Kwanzan Cherry Trees
I have a kwanzan cherry that I sat out 4 years ago that has yet to bloom at all. The sapling is about 9-10 ft. tall and has lots of leaves, but no blooms ever as of yet. Is there something I can do to encourage blooming? Or a problem that is preventing it?
Pender County North Carolina
Thank you for your question. Without knowing the details of your tree's particular site I can only guess. I would start with a soil sample to rule out macronutrient deficiencies which would be easy to fix. This shows you how to take sample. Then contact your county Cooperative Extension office and let them know you would like to drop off samples -
It will give you lime and fertilizer recommendations. Alternatively too much nitrogen can cause it to switch to only vegetative growth and not flower production. In the absence of a soil sample here is a guide to fertilizing trees and shrubs https://content.ces.ncsu.edu/a-gardeners-guide-to-fertilizing-trees-and-shrubs. Other possibilities are :
1) too much shade, they like full sun
2) too young, they bloom when mature, 3-7 years after planting
3) too little/much soil moisture, they don't like wet feet but do like regular moisture in well-drained soils.
4) late winter freeze can kill cherry blossoms, resulting in no blooms for the year.
5) (if pruned) blooms were removed