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Calocedrus decurrens

An evergreen conifer native to western North America with a tall, narrow columnar habit, dense fragrant foliage, duckbill-like cones, cinnamon-red bark, and durable, aromatic wood used for timber and pencils, thriving in well-drained soils and tolerating drought.

Is Calocedrus decurrens growing in your garden? Record it and all of your plants in Known.

Common Names

Incense Cedar, California Incense Cedar, Incense-Cedar, California Incense-Cedar, White Cedar, California White Cedar, Post Cedar, Red Cedar

Summary

Incense Cedar is a native evergreen conifer of western North America from Oregon to Baja California with a broad conic to columnar crown and dense, flattened sprays of dark green, fragrant foliage; the reddish-brown bark exfoliates with age, foliage is aromatic when crushed, and cones are cylindrical with scales in decussate pairs resembling duck-beaks, with wind-dispersed seeds.

It prefers full sun to partial shade on well-drained soils, tolerating a range of soil types including sandy, loam, clay, and serpentine, with drought and heat tolerance and deep, infrequent watering when established; hardy in USDA zones 5A–8B; commonly used as a screen, hedge, or specimen, and valued for aromatic wood used in pencils and cabinetry; propagation is by seed or cuttings, and pruning is minimal, though young trees are fire-prone and sites should account for fire risk.

Lifecycle

Perennial

Height

70-110 ft

Spread

6-20 feet

Hardiness Zones

Zones 5a-8b

Sunlight Requirements

Ideally full sun, tolerates partial sun and partial shade.

Soil Type

Well-drained, slightly acidic sandy loam soil

Soil Drainage

Well-drained soil

Soil pH

6–7, slightly acidic to neutral

Bloom Color

Insignificant

Bloom Time

Spring

Foliage Color

Green to dark green

Fall Foliage Color

No fall color; evergreen.

Leaf Lifecycle

Evergreen needle

Growth Rate

Slow

Seasons of Interest

Spring, Summer, Fall, Winter

Propagation Methods

Seeds, Cuttings (great difficulty), Grafting (for cultivars)

Attracts Wildlife

Attracts birds, butterflies, other pollinators

References

Incense Cedar - Calscape. calscape.org.
Calocedrus decurrens - American Conifer Society. conifersociety.org.
Calocedrus decurrens: California Incense-Cedar. edis.ifas.ufl.edu.
Complete care guide for Calocedrus decurrens: an a…. en.jardineriaon.com.
Calocedrus decurrens. en.wikipedia.org.
Incense Cedar (Calocedrus decurrens) — Plant Profi…. hortguide.com.
Calocedrus decurrens | Landscape Plants | Oregon S…. landscapeplants.oregonstate.edu.
Calocedrus decurrens (California Incense Cedar, Ca…. plants.ces.ncsu.edu.
INCENSE CEDAR. plants.usda.gov.
How to care for Incense cedar - Complete Plant Car…. plantsnap.com.
Calocedrus decurrens, incense-cedar | US Forest Se…. research.fs.usda.gov.
Calocedrus decurrens - Native Plant Database. theodorepayne.org.
Incense-cedar | Trees - Western Washington Univers…. trees.wwu.edu.
Incense cedar. waterwisegardenplanner.org.
Calocedrus decurrens or Incense cedar. consultaplantas.com.
Incense Cedar - Moana Nursery. moananursery.com.
Calocedrus decurrens Incense Cedar, California Inc…. pfaf.org.
Calocedrus decurrens. sm.watersavingplants.com.
Libocedrus decurrens Torr. srs.fs.usda.gov.
Calocedrus decurrens - Treepedia. teratrees.com.
Calocedrus decurrens - Trees and Shrubs Online. treesandshrubsonline.org.
World Flora Online. worldfloraonline.org. June 2024.