The Spring Snow Crabapple (Malus 'Spring Snow') is a popular, fruitless, deciduous ornamental tree prized for its clean, tidy habit and fragrant white spring flowers. It features a dense, upright-oval shape, reaching 20–25 feet in height and 10–20 feet in spread. Ideal for small spaces, urban areas, and as a specimen, it requires full sun, tolerates drought, and has good cold hardiness (zones 4–8). 
Key Characteristics and Care:
Flowers & Foliage: Fragrant white blooms appear in mid-spring from pink buds. Leaves are dark green in summer, turning yellow in autumn.
Fruit: This variety is entirely sterile, producing no fruit, which eliminates messy cleanup.
Growth Rate: Medium, with a dense, columnar to oval form.
Maintenance: Low maintenance; requires little pruning,, preferably in late winter.
Site Requirements: Prefers full sun and well-drained soil. It is adaptable to various soils but can be susceptible to some diseases like fireblight.
Landscape Use: Suitable for privacy screens, street trees, and small gardens. 
This tree is a "Canadian gem" known for its elegant, "clean" appearance throughout the growing season.