Mountain Willow is a hardy alpine shrub native to the rocky slopes and meadows of Scotland, Scandinavia, and Russia. This deciduous member of the Salicaceae family thrives in hardiness zones 3, 8 and typically grows 12, 24 inches tall and wide, depending on elevation and growing conditions. Nurseries commonly offer the prostrate, high alpine form, which creates a low, dense mound perfect for alpine gardens and rain gardens. Its insignificant flowers bloom in May, and its dense growth and deer resistance make it a tough, low-maintenance choice for gardeners seeking authentic alpine character without fussy care.
Partial Sun
Moderate
3-8
24in H x 24in W
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Low
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This diminutive willow captures the rugged beauty of high mountain slopes, where it hunkles down into a tight, prostrate form to survive harsh conditions. In cultivation, it maintains that compact habit, reaching just 12, 24 inches at maturity, making it far more manageable than its taller lowland cousins. Native to calcareous, rocky alpine soils across northern Europe, it tolerates poor soils and handles both full sun and light shade, asking little in return except moderate moisture and good drainage.
Mountain Willow is primarily grown as an ornamental shrub in rock gardens, alpine troughs, and rain gardens. Its low, dense, spreading form and deer resistance make it valuable for landscape situations where wildlife pressure is high or where tough, low-maintenance groundcover is needed. It thrives in moist to wet soils and tolerates poor, rocky ground, so it excels in rain gardens and other sites where conventional ornamentals struggle.
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“Mountain Willow grows wild across the alpine regions of Scotland, Scandinavia, and Russia, where it evolved into two distinct forms based on elevation and exposure. At lower alpine elevations, it grows upright and reaches 3, 6 feet tall. Higher up, where winds are fierce and growing seasons brutally short, it adopts a low, spreading prostrate form, rarely exceeding 12, 20 inches. This dwarfed high alpine form is what nurseries typically propagate and sell today, preserving the plant's remarkable ability to adapt its architecture to survival in extreme mountain environments.”