Mugo pine

Pinus mugo var. pumilio

Pinaceae · coniferous shrub · introduced

Last updated March 8, 2026

Data Coverage 3 of 6 dimensions

Site Data

Threats

Cultivars

Phenology

GDD Thresholds

Puget Sound

Quick Facts

Height

3–5 ft

Growth Rate

Slow

Light

Full Sun

Soil

Well Drained

Water

Low

Hardiness

Zone Zones 2a–8b

Bloom Time

Non-flowering

Phenological Calendar

Stage	Typical Window	What to Look For
New growth flush BBCH 11	Feb 15-Mar 15	Lighter-colored new growth visible at branch tips

Diseases (26)

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 ostoyae 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) Botrytis cinerea Gray Mold Heterobasidion annosum Heterobasidion Root Disease In most Hypocotyl Rot and Root Rot Davisomycella medusa Medusa Needle Blight Rhabdocline spp. including R Needle Cast Gymnosporangium spp. Needle Rusts Bursaphelenchus xylophilus Pine Wilt Armillaria ostoyae Root Rot (Armillaria ostoyae) Phytophthora spp. Root Rot (Phytophthora spp.) Excess sodium chloride Salt Damage Sirococcus conigenus Sirococcus Shoot Blight Stem decay Stem Decay Diaporthe vaccinii or Diplodia tip blight agents Tip Blight Diaporthe vaccinii Twig Blight