Jeffrey Pine

Pinus jeffreyi

Pinaceae · coniferous tree · introduced

Last updated

Pinus jeffreyi (Pinaceae) is a large three-needled pine native to the mountains of Oregon, California, and western Nevada. It reaches 140 feet tall with thick, reddish-brown bark arranged in large plates. The bark and resin emit a distinctive vanilla or pineapple scent, which reliably distinguishes it from the similar-looking ponderosa pine (P. ponderosa).

Jeffrey pine grows in full sun on well-drained, often nutrient-poor soils, showing a particular affinity for serpentine and other unusual substrates. It is drought tolerant once established. The species is typically found at higher elevations than ponderosa pine in areas where their ranges overlap. Hardy in Zones 6a to 8b.

Plant Profile

Size & Form

Height
140 ft
Spread
19 ft
Growth Rate
Fast
Size at 20 yr
40 ft
Lifespan
Long-lived

Site Requirements

Light
Full Sun
Soil Drainage
Well Drained
Soil pH
5.6-8.4
Water
Moderate
Drought Tolerance
Medium
Hardiness
Zones 6a–8b

Ornamental Interest

Bloom Time
Non-flowering
Origin
Pacific Northwest native
Watch for this season

Seedling Emergence - Postemergence Damping-off Risk

Pine needle scaleHigh

Crawler Emergence

Active Below-ground Growth

Cyclaneusma Needle CastModerate

Spring Needle Infection

+ 4 more — see full disease and pest lists below

Diseases: Regionally Documented (24)

Pests: Regionally Documented (18)

Phenological Calendar

View full calendar (5 stages)
Stage Typical Window
Candle elongation BBCH 11 Feb 15-Mar 15
Pollen release BBCH 61 May 1-May 31
Pollen shed complete BBCH 69 May 15-Jun 15
Cone development (year 1-2) BBCH 71 Mar 15-May 31
Cone maturity and seed shed BBCH 85 Jun 1-Aug 31
Data Maturity
Structured Multiple sources. Expert review underway.