Siberian crabapple

For optimal growth and health, the Siberian crabapple (Malus baccata 'Halward') should be watered every 5 to 7 days, during the spring and summer growing season. Water the ground deeply so that it is moist but not soggy. During the winter months, water only every 3 to 4 weeks, as the tree is dormant and not actively growing.

Siberian crabapple (Malus baccata 'Halward') does best when planted in an area that receives full sun for 8-10 hours a day during the growing season. In winter, they will tolerate some shade, but the ideal situation is partial shade for 4-6 hours a day. It can tolerate temperatures ranging from -35°F to -10°F and prefers cooler climates. It also needs protection from strong winds, which can dry out the plant and cause damage to it.

Pruning Siberian crabapple (Malus baccata 'Halward') trees should be done in early spring before the new buds start to form. Pruning should be done to keep the desired shape and size, remove diseased, damaged or dead branches, and air out the tree's canopy to increase the access to sunlight and air circulation, thereby encouraging healthier new growth. Light pruning is recommended, and should focus on what is necessary to maintain the desired shape and size. Cuts should be made just above a bud on the branch and angled so water runs off. Removing no more than a third of the top growth is generally recommended.