Mountain mahogany is a hardy woody shrub native to the dry foothills and lower mountains of the western United States, thriving in hardiness zones 5 through 10. Growing 8 to 12 feet tall with an upright to spreading habit, it produces insignificant early summer flowers that give way to its true showstopper: hard nutlets crowned with long, silvery-white, feathery tails that blanket the plant in late summer. This is a shrub built for tough conditions, tolerating drought, shallow rocky soil, and erosion once established, while requiring minimal maintenance and thriving in full sun.
Full Sun
Moderate
5-10
144in H x 96in W
—
Low
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Those silvery, feathery-tailed fruits are genuinely arresting. In late summer, they catch the light and create an almost ethereal quality across the entire shrub, transforming what might otherwise be an understated plant into something genuinely striking. It's a plant that doesn't need showy flowers to earn its place in the landscape. Growing in lean, rocky, droughty soils that would challenge most shrubs, mountain mahogany rewards you with both beauty and resilience.
Mountain mahogany functions as a hedging plant, taking advantage of its upright to spreading growth habit and dense branching structure. Its ability to thrive in poor soils and handle erosion makes it particularly valuable for stabilizing slopes and creating structure in xeric landscapes where conventional hedge plants would struggle.
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