Brewer Spruce
Picea breweriana
Pinaceae · coniferous tree · introduced
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.
Plant Profile
Size & Form
Site Requirements
Ornamental Interest
Peak Spore Production and Dispersal
Seedling Emergence - Postemergence Damping-off Risk
Uredinial Stage (Summer)
Crawler Emergence
+ 4 more — see full disease and pest lists below
Diseases: Regionally Documented (16)
Pests: Regionally Documented (15)
Phenological Calendar
View full calendar (7 stages)
| 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 |