Mountain Alder

Alnus Incana Ssp. Tenuifolia

Design with this plant

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 5–8Climate Temperate

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — The Mountain Alder (Alnus incana ssp

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — offering habitat and food sources for wildlife

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — including butterflies and birds seeking its nutritious seeds

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — green and yellow flowers in the garden

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — tree with green and yellow blooms

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — tree for full or half

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — The Mountain Alder (Alnus incana ssp; its elongated, serrated leaves turn yellow in fall, complementing catkins

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

Family: Betulaceae
Climate: Temperate

See full data, regional cultivation notes, full-resolution photos, and design tools. Build a client presentation around this plant.

Start your 14-day trial

Photos (32)

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) — offering habitat and food sources for wildlife

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — including butterflies and birds seeking its nutritious seeds

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — green and yellow flowers in the garden

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — tree with green and yellow blooms

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — tree for full or half

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) — Adaptable and versatile, it flourishes along streambanks and moist sites; adding visual interest during the

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) — This hardy species' root system stabilizes soil, image 32

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — although it prefers moist

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — Ideal for zones 4 through 7

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — it can also tolerate wet sites

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — The Mountain Alder (Alnus incana ssp

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — tenuifolia) is a deciduous shrub reaching 10-15 feet in height

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — adding visual interest during the dormant season.<br><br>Alder species

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — seasonally evolving landscape aesthetic.<br><br>Additionally

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) — upright female catkins eventually develop into charming woody cones that persist into winter

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — This hardy plant exhibits adaptability to a wide range of soil types

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

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — This hardy species' root system stabilizes soil

Mountain Alder (Alnus Incana Ssp. Tenuifolia) — making it excellent for erosion control and a valuable habitat for wildlife

Related plants

European White Birch (Betula Pendula) — The European White Birch (Betula pendula) ‚Äì a graceful deciduous tree

European White Birch

Betula Pendula

Full · Zones 3–9

Eastern Hop Hornbean (Ostrya Virginiana) — Eastern Hop Hornbeam (Ostrya virginiana), a durable native understory tree, grows 20-40 ft

Eastern Hop Hornbean

Ostrya Virginiana

Full · Zones 2–7

White Alder (Alnus Rhombifolia) — The White Alder (Alnus rhombifolia) is a deciduous tree reaching up to 50-80 ft

White Alder

Alnus Rhombifolia

Full · Zones 8–10

Winter Hazel (Corylopsis Spicata) — commonly known as Winter Hazel

Winter Hazel

Corylopsis Spicata

Full · Zones 5–8

Hazel Alder (Alnus Serrulata) — The Hazel Alder (Alnus serrulata)

Hazel Alder

Alnus Serrulata

Full · Zones 5–9

Harry Lauder's Walking Stick, Twist (Corylus Avellana 'Contorta') — Corylus avellana 'Contorta,' popularly known as Harry Lauder's Walking Stick

Harry Lauder's Walking Stick, Twist

Corylus Avellana 'Contorta'

Full · Zones 4–10