Red Pine

Pinus resinosa

Pinaceae · coniferous tree · native

Last updated March 8, 2026

Data Coverage 3 of 6 dimensions

Site Data

Threats

Cultivars

Phenology

GDD Thresholds

Puget Sound

Quick Facts

Height

25–50 ft

Growth Rate

Fast

Light

Full Sun

Soil

Well Drained

Water

Low

Hardiness

Zone Zones 3a–8b

Bloom Time

Non-flowering

Origin

Newfoundland to Manitoba, south to Minnesota

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
Bloom start BBCH 61	Mar 15-May 15	First open flowers visible; flowers brown
Bloom end / petal fall BBCH 69	Apr 15-May 31	Last petals falling; flower structures fading
Fruit/seed development BBCH 71	Jun 1-Aug 31	Fruit or seed structures forming; fruit color: purple
Fruit/seed maturity BBCH 85	Sep 1-Nov 30	Fruit fully colored and ripened; seed dispersal may begin

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