Another reason for a lack of blooms is improper pruning. This sounds like a small, young tree, so you probably haven’t been doing much pruning, but overly aggressive pruning can sometimes stimulate the tree to flush out vegetative growth rather than flowering. These diseases can damage the tree’s flowers or prevent them from forming altogether. If this is the case, you may need to prune back surrounding trees or move the crabapp. A third reason your crabapple tree may not be blooming is due to disease or pests. If temperatures are too cold during the winter or too warm during the spring, the tree may not bloom. See full list on thegardenmagazine. com Crabapple trees bloom on old wood, meaning the buds for the next year’s flowers are formed on the previous year’s growth. While there isn’t muc. Similarly, pests like aphids or spider mites can also damage the tree and impa. To avoid this, prune your crabapple tree immed. Crabapple trees need full sun to thrive and produce flowers. Find out the reasons why your crabapple tree isn’t flowering here. However, sometimes, they don’t bloom. Several factors could be causing the lack of blooms , from improper pruning to environmental stress or even a lack of pollination. Similarly, if there is a late frost or heavy rain during the blooming period, the flowers may be damaged or destroyed. One reason a crabapple tree may not bloom is due to insufficient light. Common diseases that can affect crabapple trees include fire blight, apple scab, and cedar apple rust. If you prune your tree too late in the season or too aggressively, you may remove the buds for the following year’s flowers. · there are several possible reasons for a crabapple not blooming , some simple and some more involved. If your tree is located in a shady area or if other trees are shading it, it may not be getting enough sunlight to produce flowers. Flowering crabapple trees are a delight in the spring. · figuring out why your crabapple isn’t blooming can help you get it back on track so you can enjoy its colorful display next season. This article will help with tips on troubleshooting flowering crabapple problems. · and there you go: Just some of the many reasons why a crabapple tree doesn ’t bloom. Finally, environmental factors like temperature and weather can impact a crabapple tree’s ability to bloom. · there are a few reasons your crabapple might not be blooming right now.