Bigcone Douglas-fir

Pseudotsuga macrocarpa

Pinaceae · coniferous tree · native

Last updated

Quick Facts

Height
75 ft
Growth Rate
Moderate
Light
Full Sun
Soil
Well Drained
Water
Low
Hardiness
Zone Zones 7a–8b
Origin
southern California, in mountainous areas from Kern County
Watch for this season
RustHigh

Aecial Stage (Alternate Host)

Cooley spruce gall adelgidHigh

Spring Feeding

Pine needle scaleHigh

Crawler Emergence

Active Below-ground Growth

+ 1 more — see full disease and pest lists below

Phenological Calendar

Stage Typical Window
Bud swell / bud break BBCH 07 Feb 15-Mar 15
New growth flush BBCH 11 Mar 1-Apr 1
Pollen release BBCH 61 Mar 1-Mar 31
Pollen shed complete BBCH 69 Apr 1-Apr 15
Cone development BBCH 71 Jun 1-Aug 31
Cone maturity and seed shed BBCH 85 Sep 1-Nov 30

Diseases: Regionally Documented (12)

Pests: Regionally Documented (12)

Data Maturity
Structured Multiple sources. Expert review underway.