Kinnikinnik Kinnikinick

'Bloom start'

Arctostaphylos uva

Ericaceae · vine groundcover · native

Last updated

Kinnikinnick spreads as an evergreen ground cover that rarely exceeds one foot in height, its prostrate stems rooting where they touch soil to form dense, creeping mats. The small, lustrous dark green obovate leaves cluster along finely textured reddish stems that exfoliate to reveal glossy bare wood on older growth. In spring, delicate white flowers blushed with pink emerge in nodding clusters; by late summer, bright red fleshy berries persist and attract birds. Native across the circumboreal Northern Hemisphere, it spreads 3 to 6 feet wide while hugging the ground.

Kinnikinnick succeeds in full sun to part shade with well-drained, sandy or infertile soils; it dislikes compacted earth and heavy clay unless significantly amended. Difficult to transplant, so establish it correctly on the first attempt. Water moderately in the first year; once established, reduce frequency. Susceptible to black root rot, leaf gall, leaf spot, Phytophthora dieback, and rust; avoid waterlogged sites to minimize root diseases. Several cultivars ('Massachusetts', 'Point Reyes', 'Emerald Carpet', 'Vancouver Jade') offer hardiness and vigor variations; 'Emerald Carpet' tolerates more shade while 'Vancouver Jade' turns red-bronze in winter.

Quick Facts

Height
0-1 ft
Spread
3-6 ft
Growth Rate
Medium
Light
Full Sun to Part Shade
Soil
Moist
Water
Moderate
Hardiness
Zone Zones 2a–8b
Fall Color
Purple, red
Origin
Pacific Northwest native
Watch for this season
RustHigh

Aecial Stage (Alternate Host)

AphidModerate

Spring Colonization

Root weevilModerate

Adult Emergence & Foliar Feeding

Field Observations

Arctostaphylos uva-ursi - bloom
Field Observation
Arctostaphylos uva-ursi · Kinnikinnick
bloom
April 27, 2026 · Kent · 1,624 GDD₃₂ · BBCH 61

Phenological Calendar

As of May 13, 2026, Puget Sound stations range from 1906.2 to 2098.2 GDD₃₂. Kinnikinnik Kinnikinick has passed 'bloom start' (1624 GDD₃₂).

Regional Season Tracker

GDD₃₂ accumulation across 7 Puget Sound stations · as of May 13, 2026
Station GDD₃₂ Current Stage Next To Go
Issaquah / East King 2,098 'Bloom start'
Kent / Auburn 2,089 'Bloom start'
Seattle / UW 2,063 'Bloom start'
Olympia / Tumwater 2,025 'Bloom start'
Tacoma / Puyallup 1,993 'Bloom start'
Bellingham / Whatcom 1,972 'Bloom start'
Sequim / Rain Shadow 1,906 'Bloom start'
Stage GDD32 Typical Window
'Bloom start' BBCH '61' NOW 1624 'Late April'

Source: 'Field observation, Kent, WA, 2026-04-27' About GDD₃₂ →

Season tracker for Kent / Auburn as of May 13, 2026. Predicted dates use 16-day weather forecast through May 29, 2026, then climate normals.

Diseases: Regionally Documented (5)

Pests: Regionally Documented (3)

Cultivars (5)

'Massachusetts'
Common name: Massachusetts Kinnikinnik Massachusetts Bearberry; Mature height: 1 ft
Hardy to USDA Zone 2
'Point Reyes'
Common name: Point Reyes Kinnikinnik Point Reyes Bearberry
Hardy to USDA Zone 6
'San Bruno Mountain'
Common name: San Bruno Mountain Kinnikinnik San Bruno Mountain Bearberry; Mature height: 1 ft
Hardy to USDA Zone 8
'Emerald Carpet'
'Vancouver Jade'
Data Maturity
Structured Multiple sources. Expert review underway.