Crabapples are a group of small flowering trees used for conservation and landscape plantings. They are valued for their foliage, fruit, flowers, wildlife benefits, and variations in form and size. Many varieties of conservation crabapples are hybrids of this species. Flowers and fruit are of particular interest. Siberian crabapple is the hardiest species of the Malus genus and produces white flowers. The largest tree in North Dakota is 32 feet tall with a canopy spread of 40 feet.