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Pinus strobus 'Blue Shag'

Common Name(s):

Blue Shag Eastern White Pine

Blue Shag White ine

Synonym:

​

Dwarf Eastern White pine

Flower:

No Flower

Blooms :

​

to:

​

​

Botanical Description

Fragrant?

NO

Family:

Pinaceae

Med - Lg Shrub (usually >3' and never < 1.5')

Foliage:

Green

Short, blue green 5" needles in bundles of 5 are soft to the touch

Fall Color?

YES

Green foliage

Evergreen

Photo by: 

Heading 6

Dense globe-shaped form with striking blue-green needles

Oregon Native?

NO

West State Native?

NO

Origins:

Cultivated variety of Eastern White pine that grows in Southern Canada from Manitoba to Newfoundland, throughout the northern and eastern states from Minnesota and northern Iowa to the Atlantic coast, and southward along the Appalachian mountains to northern Georgia and Alabama

Site Selection

Minimum USDA Hardiness Zone:

3

Water Needs:

M

Sun Needs:

Sun

Deer Resistant?

NO

Firewise?

NO

Height:

2-4'

Spread:

2-4'

Growth Rate:

Fast

Native Habitat:

Cultivar so has no native habitat

Soil:

Prefers fertile, acidic, medium moisture, well-drained soil; Intolerant of compacted, clayey soils, alkaline conditions

Care Recommendations

Maintenance Level:

Low

Fertilizer:

Apply a balanced slow-release acid loving fertilizer once each year in early spring

Mulch:

Organic compost, shredded leaves, pine bark

Deep water during dry spells and in fall before ground freezes, fertilize if needed, give light pruning during winter months if needed, mulch, watch for pests

Long Term:

Winter:

Deep water before freezing, water once a week if temperatures are warm, protect from heavy snow by gently removing, can prune if needed

Spring:

Light shaping, fertilize, monitor for pests

Summer:

Consistent moisture, mulch, monitor for pests

Fall:

Root hydration before winter, prune if needed, winter preparation

General Care Comments:

Prefers cool, humid climates likes fertile slightly acidic soil, apply a 2-3" layer of mulch, once established water once a week during dry spells

Common Problems

Potential to get white pine blister rust if in close proximityto gooseberry bushes

Diseases:

White pine blister rust could be a problem.

Insects:

White pine weevil, pine aphids

Environmental Problems:

Intolerant of air pollutants such as sulfur dioxide and ozone.

Pests:

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COMGA

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