Malus sylvestris – Common Crab Apple (central Europe to western Asia)
(= M. communis)
Habit: Large shrub or small tree, 3-10 m tall, up to 4-6 (8) m wide; usually with short stem or several shoots, branches arching, twigs overhanging, expansively broad crown; slow-growing, 20 cm a year.
Flowers: Plentiful, buds dark pink, opening white , during or after shooting, April to May; pleasant fragrance.
Fruits: Small, 2-4 cm long, round apples, initially green, gradually yellowish with red stripes, hard and tasty-sour, October.
Leaves: Broadly elliptical, dull green, pale yellow in autumn.
Twigs: Red-brown, occasionally thorny.
Stem: Twisted, crooked, bark scaly and peeling in conspicuous reddish, grey, and brown spots.
Roots: Flat roots, sensitive to paving and soil compaction.
Demands: Sun to semi-shade, likes warmth, frost hardy, prefers high humidity; tolerant of urban pollution, wind resistant.
Soil: Moderately dry to moist; slightly acidic to alkaline, likes chalk, nutritious, sandy-loamy to loamy.
Hardiness: Zone 4