Royalty Crabapple - Malus 'Royalty'
Family Rosaceae - Rose Family; Fruit Trees

Royalty Crab grows to 15 feet / Spread: to 15 feet. Growth rate: moderate
Royalty Crabapple Triptych, Morton Arboretum acc. 103-90* 1, 2 & 3  May 8th [2]
The Royalty Crabapple is an outstanding ornamental with single, dark red blossoms in spring that produce large, dark red fruit in the fall. The new foliage is a glossy rich purple with a green undercast, turning purple-green in mid-summer and brilliant purple in the fall. This very hardy, blight resistant crabapple has outstanding foliage with the leaves having a bright, varnished appearance and nice purple fall color . It prefers full sun and moist, well drained soil. This upright, vigorous growing tree provides three-season interest for visual enjoyment.   [4]

However, questions arise as to susceptibility to disease, especially Scab. Disease and insect problems vary from state to state, and therefore national lists of outstanding crabapples don’t always fit the bill for every state. These data are the best available for Kentucky (USDA Hardiness Zones 6 and 7) conditions. It is our recommendation that disease and insect resistance become your top priorities. Be aware that cultivars such as ‘Hopa,’ ‘Radiant,’ and ‘Ruby Luster’ were included in the test as scab-susceptible checks and should not be considered desirable cultivars. ‘Royalty’ and ‘Indian Magic’ also should be used with caution because of scab susceptibility. [4] (Our emphasis).

Royalty crabbapple blossoms & foliage
References
  1. Morton Arboretum, Crabapple: A Tree For All Seasons
  2. Royalty Crabapple - Malus 'Royalty', Morton Arboretum acc. 103-90* 1, 2 & 3, Photos: Bruce J. Marlin
  3. Morton Arboretum, Crabapples for the Home Landscape
  4. R.E. Durham, R.E. McNiel, J.R. Hartman, D.A. Potter, and W.M. Fountain, University of Kentucky College of Agriculture, The Flowering Crabapple
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Family Rosaceae - Rose Family; Fruit Trees
Containing Hawthorns, Apples, Pears, Cherries, Plums, Peach, Almond, Mountain-Ash and Whitebeam. Rosaceae is a large family of plants with about 3,000 species in ~100 genera. Crabapple and other fruit trees provide some of our most outstanding flowering ornamentals, as well as food for birds and other wildlife.
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