Brewer Spruce

Picea breweriana

Pinaceae · coniferous tree · native

Last updated

Picea breweriana (Pinaceae) is a rare evergreen conifer endemic to the Siskiyou Mountains of southwestern Oregon and northwestern California. It grows 50 to 80 feet tall, forming a narrow pyramidal crown with the most dramatically weeping branches of any spruce: secondary branches hang vertically up to 2.5 meters like curtains from the horizontal main limbs.

Brewer spruce is considered one of the most beautiful native conifers. It requires a cool, moist climate and grows slowly. In the wild it is restricted to high elevations on serpentine and other nutrient-poor soils. It is rarely offered in the nursery trade. Hardy in Zones 6a to 8b.

Quick Facts

Height
50–80 ft
Spread
16 ft
Growth Rate
Slow
Light
Part Shade
Soil
Well Drained
Water
Moderate
Hardiness
Zone Zones 6a–8b
Bloom Time
Non-flowering
Origin
Pacific Northwest native
Watch for this season

Spring Canker Activation

Spring Sowing - Preemergence Damping-off Risk

RustHigh

Aecial Stage (Alternate Host)

Cooley spruce gall adelgidHigh

Spring Feeding

+ 3 more — see full disease and pest lists below

Phenological Calendar

Stage Typical Window
Bud break BBCH 07 Feb 15-Mar 15
Leaf emergence BBCH 11 Mar 1-Apr 1
Pollen release BBCH 61 Jun 1-Jun 30
Pollen shed complete BBCH 69 Jun 15-Jul 15
Cone development BBCH 71 Jun 1-Aug 31
Cone maturity and seed shed BBCH 85 Sep 1-Nov 30
Dormancy BBCH 97 Nov 15-Feb 28

Diseases: Regionally Documented (16)

Pests: Regionally Documented (15)

Data Maturity
Structured Multiple sources. Expert review underway.