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Plant guide

Ponderosa pine.

Pinus ponderosa

Pronounced PY-nus pon-der-OH-suh

Also known as Bull Pine, Western Ponderosa Pine, Western Yellow-Pine, Willamette Valley Ponderosa Pine, blackjack pine

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Western Ponderosa Pine
Photo by Jim Morefield (CC BY) via iNaturalist

The Ponderosa pine is a majestic evergreen conifer native to western North America. It is well known for its tall, straight trunk and distinctive bark that smells like vanilla or butterscotch. These trees are iconic symbols of the American West.

Another photo of Ponderosa pine
Photo by Sequoia Janirella Wrens (CC0) via gbif

At a glance

Care level
Easy
Plant type
Coniferous tree
Light
Full sun
Indoor light
Direct sun
Water
Every 14 to 30 days
Mature size
60 to 130 feet
Growth rate
Medium
Hardiness
USDA 3 to 7
Bloom time
Late spring

Care

Plant this tree in a sunny spot with plenty of space to accommodate its large size. Ensure the soil drains well, as these trees do not like sitting in wet feet. Watch for yellowing needles which can indicate poor drainage or nutrient issues.

Watering
Water deeply during the first few years until established, then rely on natural rainfall.
Feeding
Apply a balanced fertilizer in early spring if the tree shows signs of slow growth.
Pruning
Remove dead or damaged branches in late winter while the tree is dormant.
Repotting
Ponderosa pines are typically grown outdoors in the ground, but young specimens in containers need fresh soil every few years.
Soil
Well drained sandy or rocky soil
Soil pH
6.0 to 7.5
Temperature
-35 to 35°C
Humidity
20 to 50%
Drought tolerance
High
Lifespan
Long lived, often 300 to 500 years.
Fragrance
Strong
Deer and rabbits
Moderate

Safety

People
The needles contain small amounts of isocupressic acid, which can cause issues if consumed in large quantities.
Children
The sharp needles and heavy cones can pose a physical injury risk to small children if they fall or are handled carelessly.
Contact allergens
The sap can cause skin irritation in sensitive individuals.
Airborne allergens
The pollen is a common airborne allergen during the spring release.
Edibility
The inner bark and seeds are edible, but ensure correct identification as some pine species are toxic.

How to identify it

  • Long, dark green needles in bundles of three
  • Thick, reddish brown bark with puzzle piece plates
  • Large, woody cones with sharp prickles
  • Tall, straight, columnar growth habit
Height
18 to 50m
Spread
6 to 12m
Leaves
dark green, yellow green, evergreen
Flowers
yellow, red, 1 to 2cm
Fruit
brown, Autumn

Problems to watch for

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    Growing it

    Propagation
    seed
    When to plant
    spring, autumn
    Overwintering
    No special winter care is needed as they are fully hardy in their native range.
    In containers
    Not suitable for long term container growth due to its massive size.

    Seed

    1. Collect mature cones in late summer or autumn before they open.
    2. Dry the cones in a warm place until they release their seeds.
    3. Cold stratify the seeds in a refrigerator for 30 to 60 days.
    4. Sow seeds in well draining soil and keep moist until germination.

    Plant in open, sunny areas with plenty of space to accommodate their large mature size.

    Grows well with

    • Common Juniper · It thrives in similar dry, sunny conditions and provides ground cover.
    • Quaking Aspen · They often grow together in mixed stands and provide nice color contrast.

    Similar species

    • Jeffrey Pine · It looks very similar but has larger cones and different smelling bark.

    Science

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

    It is a keystone species that creates open parklike forests which support a wide variety of understory plants and wildlife.

    Value to wildlife
    seeds provide food for birds and small mammals, provides nesting habitat
    Pollinators
    bees
    Uses
    timber production, ornamental landscape tree, erosion control, wildlife habitat

    Through the year

    JFMAMJJASOND
    Flowering
    Fruiting
    Foliage

    Ecological indicators

    Salinity
    2/9
    Soil reaction
    5/9
    Light
    8/9
    Temperature
    4/9
    Moisture
    3/9
    Nutrients
    3/9

    Taxonomy resolved against GBIF.

    Questions people ask

    How fast do they grow?
    They grow at a moderate rate, typically adding 30 to 60 centimeters per year.
    Do they need a lot of water?
    Once established, they are quite drought tolerant and prefer well drained soil.

    Where the name comes from

    The scientific name Pinus is the classical Latin name for pine, while ponderosa refers to the heavy, substantial nature of the wood.

    Good to know

    • Ponderosa pines are one of the most widely distributed pine species in North America.
    • They are fire adapted and have thick bark to protect them from low intensity ground fires.
    • The name ponderosa comes from the Latin word for heavy, referring to the dense wood.
    • These trees can live for over 500 years in the right conditions.

    Also in

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