How to Grow Mountain Dogwood
Mountain Dogwood
Cornus nuttallii
treeMountain dogwood is a deciduous to semi-evergreen tree native to the Pacific Northwest, prized for its spectacular white or pink bracts that resemble flowers in spring and its attractive red berries and fall foliage. It typically grows 20-30 feet tall and is an excellent ornamental for woodland gardens and native plant landscapes. The tree's layered branching structure and four-season interest make it a garden favorite in appropriate climates.
When should you plant Mountain Dogwood in your zone?
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Example Mountain Dogwood timeline · Pittsburgh, PA (Zone 6b)
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Plant Mountain Dogwood
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Mountain Dogwood
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 8-9; marginal in zone 7b with protection
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Establishment
1-2 yearsYoung tree settling into landscape; small canopy with single or multiple stems
Water weekly even in rainy seasons; mulch with 2-3 inches of organic material; avoid fertilizer first year; stake if necessary in windy sites
Vegetative Growth
2-3 yearsDeveloping layered branch structure; vigorous shoot extension and leaf production
Maintain consistent moisture; light pruning only to remove dead/crossing branches; establish branch framework; monitor for pests
Flowering
3-4 weeks in spring, sometimes repeat flowering in fallSpring display of white or pale pink bracts (April-May); actual flowers small and greenish-yellow in center of bracts
Do not prune during flowering; ensure adequate moisture; light fertilization with balanced slow-release fertilizer if needed
Fruiting
June-OctoberSmall red to orange drupes (berries) develop through summer; ripen to bright red by fall, attractive to birds
Maintain regular watering; protect from excessive heat and drought stress; birds will consume berries naturally
Dormancy
November-MarchDeciduous form drops leaves in fall (golden-red colors); semi-evergreen forms retain some foliage; tree enters rest period
Discontinue fertilizer; reduce watering; apply winter mulch in zone 8a; avoid pruning; inspect for winter damage
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Keep tree healthy and stress-free; prune damaged branches; avoid wounding bark; apply insecticide to trunk if borers active
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Spray with horticultural oil in dormant season; prune heavily infested branches; encourage natural predators
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Improve air circulation; avoid overhead watering; apply sulfur or neem oil spray if severe; plant in partial shade
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Remove infected leaves; improve drainage and air flow; avoid wetting foliage; apply fungicide if widespread
Uses
Bird Food Source
WildlifeThe bright red drupes (berries) are highly attractive to songbirds, cedar waxwings, and thrushes, providing important fall and winter nutrition. The tree supports a diverse bird population. [source]
Ornamental Landscaping
HouseholdPrized as a specimen tree for woodland gardens, shade gardens, and native plant landscapes. The spring bracts, red berries, and fall color provide four-season visual interest. [source]
Cut Flowers and Arrangements
CraftFlowering and fruiting branches are excellent for spring floral arrangements and dried botanical displays. Bracts are long-lasting when cut. [source]
Traditional Native American Uses
MedicinalPacific Northwest tribes traditionally used dogwood bark and wood for various purposes; the wood was valued for its hardness and durability in tool-making. [source]
Edible Berries
CulinaryBerries are edible and slightly sweet, though not commonly harvested for human consumption. Primarily left for wildlife but can be used in jams or dried. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Mountain dogwood is an ornamental tree, not harvested for food. Collect berries if desired for wildlife, dried arrangements, or propagation in late September-October when fully ripe and red. Collect branches with bracts for cut flower arrangements in spring by cutting at branch collar.
Fun Facts
- 🌱 Mountain dogwood can produce flowers twice in a single year—a spring flush and sometimes a smaller fall flush—creating double the ornamental display.
- 🌱 The bracts (leaf-like structures) that people admire are not true flowers; the actual flowers are tiny and greenish-yellow, clustered in the center of the bracts.
- 🌱 The tree's common name derives from the observation that native peoples used the wood to make 'skewers' called 'dogs' or 'doges,' hence 'dogwood.'
Gardening Terms
New to gardening? Learn about terms used in this guide:
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