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eastern white pine

Photo: Andrew Sebastian, CC BY 4.0, via iNaturalist · Algonquin Provincial Park, Madawaska, ON, CA, 2021-08-04

Trees · Native to Quebec

eastern white pine

Pinus strobus Pinaceae

Eastern white pine is a tall evergreen conifer with soft, bluish-green needles held in bundles of five. Young trees grow quickly into an open pyramid, and older trees develop a broad crown with long horizontal branches set in tiers. Slender cones 15 to 20 cm long ripen in late summer of their second year and drop their seeds into fall. The tree stays green all winter, shedding its oldest inner needles each autumn as a soft, rust-coloured mulch.

Latin
Pinus strobus
L. · family Pinaceae
English
eastern white pine
white pine, northern white pine, soft pine, Weymouth pine
French
pin blanc
pin Weymouth, pin du lord Weymouth, pin strobus
Kanien'kéha (Mohawk)
tyonerahtase'kó:wa
onehta'kó:wa, ohnehta'kó:wah
The Greenbelt Indigenous Botanical Survey lists all three Kanien'kéha names for white pine. The same page gives Onèn:ta as a general Kanien'kéha term for pine.
Anishinaabemowin (Ojibwe)
zhingwaak
biisaandago-zhingwaak, shingwaak
Animate noun, plural zhingwaakwag. The Ojibwe People's Dictionary glosses it as a pine, with one dialect source specifying white pine and another red pine. The Greenbelt survey lists biisaandago-zhingwaak, zhingwaak and shingwaak for white pine.

Through the year

eastern white pine in every season.

Story

The history of eastern white pine.

White pine grows from Newfoundland to Manitoba and south through the Appalachians, and was once a dominant tree of the forests of southern Quebec and the Ottawa Valley. It favours sandy, well-drained, acidic soils and resists fire well, so surviving mature trees often reseed burned ground. Old-growth stands once covered much of northeastern North America, but intensive logging from the 1700s to the 1900s left only about 1 percent of them. An introduced fungus, white pine blister rust, which needs currants and gooseberries as alternate hosts, killed a large share of mature trees in the early twentieth century.

The English and French name Weymouth pine is tied to Captain George Weymouth, associated with bringing the tree to England in the early 1600s. Its tall straight trunks made ideal ship masts, and colonial authorities marked the best trees with the broad arrow to reserve them for the British navy, a policy that led to the Pine Tree Riot of 1772. White pine then supplied much of the lumber of the eastern North American timber trade until the virgin forests were cut.

Sources: Lady Bird Johnson Wildflower Center: Pinus strobus · Wikipedia: Pinus strobus

Characteristics

The plant at a glance.

Height15 to 25 m in gardens; 30 m or more in the wild
Spread6 to 12 m
HabitConical when young, becoming broad and irregular with tiered horizontal branches
Bloom timeNot a flowering plant; pollen cones shed in late spring
ConesSlender, 15 to 20 cm long, ripening in late summer of the second year
FoliageSoft, bluish-green needles in bundles of five, clustered at the twig ends
FruitWinged seeds released from cones in late summer and fall
HardinessZone 3
LightFull sun to part shade
MoistureDry to moist, well-drained, acidic soil
Spread behaviourSingle trunk; self-sows into nearby openings
Native rangeNewfoundland to Manitoba, south through the Appalachians to Georgia
Quebec statusNative

In the Flight Path Garden

Where it grows here.

ZonesMini-Forest
How many2
Planted2022 and 2025

In the back row of the Mini-Forest, white pine forms the tall evergreen canopy that shelters the layers below and keeps the planting green and full of bird life through winter.

Wildlife

Who uses it.

  • Its needles feed the caterpillars of about 200 moth and butterfly species, including the eastern pine elfin and the imperial moth.
  • Up to 40 bird species eat its seeds, including chickadees, nuthatches, juncos, grosbeaks and woodpeckers, and crossbills move through in search of white pine cones; mourning doves, purple finches and robins nest in its branches.
  • Red squirrels, grey squirrels, chipmunks, mice and voles eat the seeds, and the dense crown gives birds winter shelter.

Sources: Ferns & Feathers: Eastern White Pine · Wikipedia: Pinus strobus

Care

What to do, season by season.

Spring

Water young trees during dry spells and keep a ring of leaf or wood-chip mulch over the roots. Watch new shoot tips in May and June for wilting, a sign of white pine weevil, and cut out affected leaders.

Summer

Give deep, occasional watering through the first few summers until roots are established. Leave the needle drop in place as mulch.

Fall

Expect the oldest inner needles to turn yellow and fall in September and October; this is normal. Keep currants and gooseberries away from the trees, since they host blister rust.

Winter

Keep road and sidewalk salt away from the trees, as white pine is salt sensitive. Shake heavy wet snow or ice off young trees gently to prevent broken leaders.

Relations

Knowledge and use.

White pine is the Tree of Peace of the Haudenosaunee, standing for the unity of the five nations; the Greenbelt Indigenous Botanical Survey notes that the five needles in each bundle symbolize the five nations who agreed upon the peace together. The same source records pitch used to caulk canoes and timber used for longhouses and dugout canoes, along with needle preparations used as medicine.

Source: Greenbelt Indigenous Botanical Survey: White Pine, Red Pine, Jack Pine