Alnus tenuifolia
Alnus tenuifoliafam. Betulaceae
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Pl. B7A8 — Alnus tenuifolia
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IOverview
Overview
Alnus tenuifolia, commonly known as narrow-leaved alder, is a deciduous tree or shrub native to the western and northwestern United States, including Alaska, Alberta, Arizona, British Columbia, California, Colorado, Idaho, Montana, Nevada, New Mexico, Northwest Territories, Oregon, Saskatchewan, Utah, Washington, and Wyoming. It thrives in moist, wet conditions with medium to heavy clay soil, preferring a pH range of 5 to 7. This plant is known for its edible flowers and can be found growing in habitats where it receives full or partial sun. Its distinctive narrow leaves set it apart from other alder species, making it an interesting addition to gardens or natural landscapes.
Quick answers
What is Alnus tenuifolia?
Alnus tenuifolia, commonly known as narrow-leaved alder, is a deciduous tree or shrub native to the western and northwestern United States, including Alaska, Alberta, Arizona, British Columbia, California, Colorado, Idaho, Montana, Nevada, New Mexico, Northwest Territories, Orego
Growingconditions · propagation · uses
VCultivation
Cultivation
Alnus tenuifolia thrives in full to partial sun and prefers moist to wet conditions, making it suitable for areas with moderate to heavy clay soils. This tree or shrub grows up to 9 meters tall and is hardy in zones 5-7. It is native to regions including Alaska, Alberta, Arizona, British Columbia, California, Colorado, Idaho, Montana, and parts of Canada. For cultivation, ensure the soil pH is between 5 and 7. Propagate through seeds or cuttings. Harvest its edible flowers for use.
Light
Full sun, Partial sun/shade
Water
Moist, Wet
Soil
Medium, Heavy (clay)
Hardiness
5-7
Habit
Tree, Shrub
Mature size
9.0 m tall
Soil pH
5–7
For first-time growers
How to grow Alnus tenuifolia for the first time
8steps
Start with a simple planting of Skip to gain experience in growing Alnus tenuifolia.
- 1
What you'll need
Skip saplings, well-draining soil, and a container or garden space.
- 2
Best time to plant
Plant Skip in early spring or late fall when the weather is cooler.
- 3
Soil and container prep
Ensure the soil has good drainage and a pH between 5 and 7. For containers, use a mix of medium and heavy clay soils.
- 4
Sowing or transplanting
Transplant Skip saplings into your prepared garden bed or container.
- 5
First two weeks
Water regularly to keep the soil moist but not waterlogged. Monitor for any signs of stress.
- 6
Ongoing care
Provide full sun to partial shade and regular watering, especially during dry spells.
- 7
Harvest or pruning
Prune Skip in late winter before new growth starts to maintain its shape and health.
- 8
Common mistakes
Overwatering, planting in poorly drained soil, and not providing enough sunlight are common issues beginners face.
VIEdible & utility
Edible & utility
Edible parts:Flowers
Edible uses: The flowers of Alnus tenuifolia are edible and can be consumed raw or used to make a light tea. They add a mild flavor to dishes and are often enjoyed for their nutritional value.
Other uses:PioneerErosion controlTanninLumberNitrogen fixer
Contextrange · companions · related
VIIDistribution
17 native · 0 introduced
Distribution
17 native · 0 introducedDistribution across1 continent· 17 native
Americas1 region
native (1)United States
Broader regions
native:Alberta, Arizona, British Columbia, California, Colorado, Idaho, Montana, Nevada, New Mexico, Northwest Territorie, Oregon, Saskatchewan, Utah, Washington, Wyoming, Yukon
IXSpecimen gallery
1 image
Specimen gallery
1 imageXSee also
7 related
See also
7 relatedPlants you might compare or use together — scored by shared family (Betulaceae), common use cases, and growing requirements.
same family · Betulaceae
Botanical relatives — often share phytochemistry + growing needs.
XI
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Growing zone
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