Question: We have had a Flowering Crabapple tree (not fruit one) for three years. The first two years it was excellent. This year it’s not blooming. It is not 5′ high and has buds. It is alive but there are no blooms. Answer: Jonathan Foster, Home Horticulture Outreach Professional There are a few reasons your read more Why is my Flowering Crabapple tree not blooming?