Black Spruce

Picea mariana

Pinaceae · conifer · introduced

Quick Facts

Height

30–40 ft

Spread

13 ft

Growth Rate

Slow

Light

Part Shade

Soil

Wet Tolerant

Water

High

Hardiness

Zone Zones 3a–8b

Bloom Time

May 1-May 31

Origin

in northern North America

Phenological Calendar

Stage	Typical Window	What to Look For
New growth flush BBCH 11	May 15-Jun 15	Lighter-colored new growth visible at branch tips
Bloom start BBCH 61	May 1-May 31	First open flowers visible; flowers yellow
Bloom end / petal fall BBCH 69	May 15-Jun 15	Last petals falling; flower structures fading
Fruit/seed development BBCH 71	Jun 1-Aug 31	Fruit or seed structures forming; fruit color: brown

Diseases (16)

Thekopsora minima and Naohidemyces vaccinii Rust

Rhizosphaera Needle Cast

abiotic (spray oil residue) Oil Discoloration Of Foliage

Botrytis cinerea Botrytis Blight

Cylindrocarpon Root Rot

Cytospora canker Cytospora Canker

Several soilborne Damping-off

Many conifers Drought Injury

Heterobasidion Root Disease

Needle Distortion

Phytophthora spp. (P Phytophthora Root Rot

Schweinitzii root and butt rot

Sparassis Root Rot

Stem decay Stem Decay

Pests (15)

Pissodes strobi White pine weevil

Oligonychus ununguis Spruce spider mite

Spruce needleminer

Spruce bud scale

Chionaspis pinifoliae Pine needle scale

Orgyia pseudotsugata Douglas-fir tussock moth

Adelges cooleyi Cooley spruce gall adelgid

Carnation tortrix

Silverspotted tiger moth

Western webspinning sawfly

Cultivars (1)

Aureovariegata

Common name: Variegated Black Spruce