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Plant guide

Eastern white pine.

Pinus strobus

Pronounced PY-nus STRO-bus

Also known as Eastern White Pine, Eastern White Pine, Northern White Pine, White Pine, Weymouth Pine (british), Soft Pine, Northern White Pine, Soft Pine, Weymouth Pine, White Pine

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eastern white pine
Photo by SteveM4560 (CC BY) via iNaturalist

The Eastern white pine is a majestic evergreen conifer native to North America. It is well known for its soft, blue green needles and tall, straight trunk. These trees provide excellent shelter for wildlife and add a classic look to any landscape.

Another photo of Eastern white pine
Photo by Eli Talhouk (CC BY) via gbif

At a glance

Care level
Easy
Plant type
Coniferous evergreen tree
Light
Full sun to partial shade
Indoor light
Direct sun
Water
Every 7 to 14 days
Mature size
50 to 80 feet
Growth rate
Fast
Hardiness
USDA 3 to 8
Bloom time
Late spring

Care

Plant your pine in a spot with plenty of space for its mature size. Keep an eye out for yellowing needles or drooping branches, which can indicate moisture issues. Ensure the soil drains well to keep the roots healthy.

Watering
Water deeply during the first few years to establish a strong root system.
Feeding
Apply a balanced fertilizer once in early spring before new growth begins.
Pruning
Remove dead or damaged branches in late winter while the tree is dormant.
Repotting
Repotting is generally not necessary for trees planted directly in the landscape.
Soil
Moist, well drained, acidic soil
Soil pH
4.5 to 6.0
Temperature
-40 to 35°C
Humidity
40 to 70%
Drought tolerance
Moderate
Lifespan
Long-lived, often 200 to 400 years.
Fragrance
Strong
Deer and rabbits
Moderate

Signs it needs repotting

  • Roots circling the bottom of the pot
  • Growth stalling despite proper care

Safety

People
The plant is generally non-toxic, though excessive consumption of pine needles can cause digestive upset.
Children
The sharp needles and heavy cones can pose a minor injury risk if children play roughly near the tree.
Contact allergens
The sticky resin can cause skin irritation in sensitive individuals.
Airborne allergens
The tree releases large amounts of pollen in late spring that may cause hay fever.
Edibility
The needles are often used for tea, but ensure they are not from a toxic yew tree before harvesting.

How to identify it

  • Soft flexible blue green needles
  • Needles arranged in bundles of five
  • Long slender cylindrical cones
  • Greyish bark with shallow fissures
Height
15 to 30m
Spread
6 to 12m
Leaves
blue-green, evergreen
Flowers
yellow, 1 to 2cm
Fruit
brown, Autumn

Common problems

  • White pine blister rust — A fungal disease that causes cankers on branches and stems.
  • White pine weevil — Larvae bore into the terminal leader, causing the top of the tree to wilt and die.

Growing it

Propagation
seed
When to plant
spring, autumn
Overwintering
No special protection is needed as it is fully hardy in its native range.
In containers
It is not well-suited for long-term container growth due to its massive size.

Seed

  1. Collect cones in late summer before they open.
  2. Dry the cones until they release the seeds.
  3. Cold stratify the seeds in a refrigerator for 30 to 60 days.
  4. Sow seeds in a well-draining soil mix in early spring.

Planting acid-loving shrubs underneath helps maintain the soil pH and creates a natural woodland aesthetic.

Grows well with

  • Serviceberry — They share similar soil requirements and provide a nice contrast in texture.
  • Mountain Laurel — This shrub thrives in the acidic soil conditions created by pine needles.

Similar species

  • Red Pine — It has needles in bundles of two rather than five.

Science

Family
Pinaceae
Genus
Pinus
Order
Pinales
Class
Pinopsida
Native range
Eastern North America.
Conservation
This species is widespread and not currently of conservation concern.

It thrives in well-drained, acidic soils and often acts as a pioneer species in forest succession.

Value to wildlife
nesting site, seed source for birds, cover for small mammals
Pollinators
bees
Uses
ornamental specimen, windbreak, timber, wildlife habitat

Through the year

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Flowering
Fruiting
Foliage

Ecological indicators

Salinity
1/9
Soil reaction
3/9
Light
7/9
Temperature
4/9
Moisture
5/9
Nutrients
4/9

Taxonomy resolved against GBIF.

Questions people ask

How fast does it grow?
It is a relatively fast grower, often adding 60 to 90 centimeters per year.
Does it tolerate shade?
Young trees tolerate partial shade, but they need full sun to reach their full potential.

Where the name comes from

The name strobus comes from the Latin word for a pine cone, while the common name refers to the soft, flexible needles.

Good to know

  • It is the provincial tree of Ontario and the state tree of Maine and Michigan.
  • The needles grow in bundles of five, which is a key identification feature.
  • These trees can live for over 400 years in undisturbed conditions.
  • They are the tallest trees in eastern North America.

Is your eastern white pine looking unwell?

This page is a general guide. Pocket Botanist diagnoses problems from a photo of your actual plant, works out watering for your light and conditions, and reminds you when care is due.

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This guide was generated with AI and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.