Jul 20, How to Prune Crabapples.
When pruning crabapple trees, start by removing suckers and water sprouts. The suckers grow from the rootstock of your tree and if you allow them to develop, they can pruning flowering crab trees into new trunks, possibly of a completely different tree type. This is because your crabapple was grafted onto the rootstock of a different variety. How & When to Trim Flowering Crab Trees. Flowering crabapple trees, genus Malus, are favorites for landscaping because of their intriguing natural shapes, flower color.
Dec 23, Most, if not all, new hybrid crabs bloom annually, but older trees may or may not bloom every year. The best time to prune your trees is in late winter or early spring before the leaves appear as it is much easier to see which branches should be removed and also gives the trees the entire spring and summer to form new growth.