Red Pine

Pinus resinosa

Pinaceae · conifer · introduced

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)

Western Gall Rust

Cronartium ribicola White Pine Blister Rust

Phytophthora spp. (P Phytophthora Root Rot

Lophodermium Needle Cast

Lophodermella Needle Cast

Elytroderma Needle Cast

Arceuthobium spp. (parasitic plant) Dwarf Mistletoe

Armillaria ostoyae Armillaria Root Rot

Cytospora spp. (synonyms: Leucostoma, Valsa) Canker

Cyclaneusma Needle Cast

Several soilborne Damping-off

Dothistroma Needle Blight (Red Band)

Botrytis cinerea Gray Mold

Heterobasidion Root Disease

In most Hypocotyl Rot and Root Rot

Medusa Needle Blight

Rhabdocline spp. including R Needle Cast

Root Rot (Armillaria ostoyae)

Root Rot (Phytophthora spp.)

Sirococcus Shoot Blight

Stem decay Stem Decay

Diaporthe vaccinii Twig Blight