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Mountain Alder

Alnus Incana Ssp. Tenuifolia

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Overview

The Mountain Alder (Alnus incana ssp. tenuifolia) is a deciduous shrub reaching 10-15 feet in height. Adaptable and versatile, it flourishes along streambanks and moist sites. Its elongated, serrated leaves turn yellow in fall, complementing catkins that provide winter interest. This hardy species' root system stabilizes soil, making it excellent for erosion control and a valuable habitat for wildlife. Prefers full sun to partial shade in zones 2-6.

Sun Full, HalfWater Extra in Summer, MediumZones 5–8Type TreeClimate Temperate
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — Adaptable and versatile, it flourishes along streambanks and moist sites
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — Its elongated, serrated leaves turn yellow in fall, complementing catkins that provide winter interest; greenMountain Alder (Alnus Incana Ssp. Tenuifolia) — tree with green and yellow bloomsMountain Alder (Alnus Incana Ssp. Tenuifolia) — The Mountain Alder (Alnus incana sspMountain Alder (Alnus Incana Ssp. Tenuifolia) — The Mountain Alder (Alnus incana ssp; its elongated, serrated leaves turn yellow in fall, complementing catkinsMountain Alder (Alnus Incana Ssp. Tenuifolia) — tenuifolia) is a deciduous shrub reaching 10-15 feet in height; this mid-sized alder is recognized for itsMountain Alder (Alnus Incana Ssp. Tenuifolia) — Prefers full sun to partial shade in zones 2-6+45

Culture

Sun
Full, Half
Water
Extra in Summer, Medium
USDA zones
5–8

Shape & size

Mature height
20–40 Ft.
Mature width
20–40 Ft.

Classification

Type
Tree
Family
Betulaceae
Climate
Temperate

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Photos (52)

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — Adaptable and versatile, it flourishes along streambanks and moist sites
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — Its elongated, serrated leaves turn yellow in fall, complementing catkins that provide winter interest; green
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — tree with green and yellow blooms
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — The Mountain Alder (Alnus incana ssp
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — The Mountain Alder (Alnus incana ssp; its elongated, serrated leaves turn yellow in fall, complementing catkins
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — tenuifolia) is a deciduous shrub reaching 10-15 feet in height; this mid-sized alder is recognized for its
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — Prefers full sun to partial shade in zones 2-6
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — Typically reaching a height of 15 to 20 feet with a spread of about 12 to 15 feet
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — offering habitat and food sources for wildlife
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — This hardy species' root system stabilizes soil, image 32
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — catkins emerge as a noteworthy ornamental feature; the male catkins dangle at around 1 to 2 inches long
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — tenuifolia) is a deciduous shrub reaching 10-15 feet in height
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — each extending approximately 1 to 3 inches in length
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — upright female catkins eventually develop into charming woody cones that persist into winter
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — Ideal for zones 4 through 7
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — tree for full or half
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — adding visual interest during the dormant season.<br><br>Alder species
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — This hardy species' root system stabilizes soil
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — this mid-sized alder is recognized for its slender and multi-stemmed habit
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — Its elongated, serrated leaves turn yellow in fall, complementing catkins that provide winter interest
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — including butterflies and birds seeking its nutritious seeds
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — This contributes to a dynamic
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — it can also tolerate wet sites
Mountain Alder (Alnus Incana Ssp. Tenuifolia) — which showcase a vibrant green hue in summer months before transforming to a striking yellow in the fall
Photographs by 6 contributors

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