Japanese White Pine
new conesPinus parviflora
Pinaceae · coniferous tree · introduced
Last updated
Plant Profile
Size & Form
Height
100 ft
Spread
19 ft
Growth Rate
Medium
Site Requirements
Light
Full Sun
Soil Drainage
Moist
Soil pH
4.5-7.0
Water
Moderate
Drought Tolerance
Moderate to high
Hardiness
Zones 4a–8b
Ornamental Interest
Bloom Time
Non-flowering
Origin
Japan Many cultivars available
Field Observations
Japanese White Pine 'Blue Giant': New growth
Watch for this season
Damping-offHigh
Seedling Emergence - Postemergence Damping-off Risk
Pine needle scaleHigh
Crawler Emergence
Armillaria Root RotModerate
Active Below-ground Growth
Cyclaneusma Needle CastModerate
Spring Needle Infection
+ 4 more — see full disease and pest lists below
Diseases: Regionally Documented (24)
Endocronartium harknessii Western Gall Rust Cronartium ribicola White Pine Blister Rust Phytophthora spp. (P Phytophthora Root Rot Lophodermium spp. Lophodermium Needle Cast Lophodermella concolor Lophodermella Needle Cast Elytroderma deformans Elytroderma Needle Cast Arceuthobium spp. (parasitic plant) Dwarf Mistletoe Armillaria spp. — primarily A Armillaria Root Rot Symptom category — not a single disease Canker Cyclaneusma minus Cyclaneusma Needle Cast Several soilborne Damping-off Dothistroma septosporum (and/or D Dothistroma Needle Blight (Red Band) Gray Mold Heterobasidion occidentale Otrosina & Garbel Heterobasidion Root Disease In most Hypocotyl Rot and Root Rot Davisomycella medusa Medusa Needle Blight Rhabdocline spp. including R Needle Cast Needle Rusts Bursaphelenchus xylophilus Pine Wilt Excess sodium chloride Salt Damage Sirococcus conigenus Sirococcus Shoot Blight Fomitopsis officinalis, Porodaedalea pini, and other wood... Stem Decay Diaporthe vaccinii or Diplodia tip blight agents Tip Blight Multiple fungal species cause twig blight on different ho... Twig Blight
Pests: Regionally Documented (18)
Eriophyidae (family) Eriophyid mite Pineus strobi Pine bark adelgid Dioryctria spp. Coneworm Pine Aphid Pissodes strobi White pine weevil Tetranychidae Spider mite Synanthedon sequoiae Sequoia pitch moth Pine Needle Sheathminer Pine Sheath Miner Chionaspis pinifoliae Pine needle scale Pine Butterfly Coloradia pandora Pandora moth Dendroctonus ponderosae Mountain pine beetle Rhyacionia buoliana European pine shoot moth Nuculaspis californica Black pineleaf scale Neodiprion spp. Pine sawfly Eulachnus agilis Powdery pine needle aphid Otiorhynchus spp. Root weevil Schizolachnus piniradiatae Woolly pine needle aphid
Phenological Calendar
As of June 3, 2026, Puget Sound stations range from 2435.5 to 2672.8 GDD₃₂. Japanese White Pine has passed new cones (2398 GDD₃₂).
Regional Season Tracker
GDD₃₂ accumulation across 7 Puget Sound stations · as of Jun 3, 2026| Station | GDD₃₂ | Current Stage | Next | To Go |
|---|---|---|---|---|
| Issaquah / East King | 2,673 | new cones | — | — |
| Kent / Auburn | 2,665 | new cones | — | — |
| Seattle / UW | 2,610 | new cones | — | — |
| Olympia / Tumwater | 2,570 | new cones | — | — |
| Tacoma / Puyallup | 2,535 | new cones | — | — |
| Bellingham / Whatcom | 2,533 | new cones | — | — |
| Sequim / Rain Shadow | 2,436 | new cones | — | — |
View full calendar (2 stages)
| Stage | GDD32 | Typical Window |
|---|---|---|
| Leaf emergence BBCH 11 | — Observed | — |
| ● new cones BBCH 61 NOW | 2398 Observed | — |
Source: Field observation, Seattle, WA (Kubota Garden). Cultivar: 'Glauca'. About GDD₃₂ →
Season tracker for Kent / Auburn as of Jun 3, 2026. Predicted dates use 16-day weather forecast through Jun 19, 2026, then climate normals.
Cultivars (5)
'Glauca'
Common name: Glauca Japanese White Pine Blue-needled Japanise White Pine; Mature height: 45 ft
Hardy to USDA Zone 4
'Ogon Janome'
Common name: Ogon janome Japanese White Pine
Hardy to USDA Zone 5
'Pygmy Yatsubusa'
Common name: Pygmy Yatsubusa Japanese White Pine
Hardy to USDA Zone 5
'Tani Mano Uki'
Common name: Tani Mano Uki Japanese White Pine Japanese Snow Pine
Hardy to USDA Zone 5
'Blue Giant'
Large form with strongly glaucous blue-green needles
Data Maturity Structured Multiple sources. Expert review underway.