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

Louisa crabapple boasts red buds opening to pale pink blossoms and a low-growing, weeping form.
Louisa Crabapple blossoms
Louisa Crabapple has a low-growing, weeping form with red buds opening to pale pink blooms and crisp, maroon-tinged green foliage throughout summer. Fall shows gold foliage giving way to a golden veil of fruit, which persists well into the new year. This is an excellent crabapple for small areas, or accent and specimen plantings. Louisa crab has excellent resistance to fire blight, rust and powdery mildew, but is susceptible to apple scab [3].
Louisa Crabapple Habit
Louisa Crabapples show their low-growing weeping form. These trees are  are 21 years old [2]
 Weeping trees and shrubs provide a graceful focal point in a garden, especially if placed in an uncluttered and visible location. The special characteristics of a weeping plant are the pendulous, drooping branches. Some also develop irregular, unique habits. Because of their unusual form many weepers are considered a collector‘s plant and their unique shape can be a major asset in the landscape as a centerpiece specimen or an unexpected accent, but add too many and they become a hodge-podge of clutter[4].
References
  1. Morton Arboretum, Crabapple: A Tree For All Seasons
  2. Louisa Crabapple - Malus 'Louisa' - Malus 'Louisa' , Morton Arboretum acc. 362-88*1, & 2, photos: Bruce J. Marlin
  3. Morton Arboretum, Crabapples for the Home Landscape
  4. Morton Arboretum, Weeping plants
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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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