Ponderosa Pine
Pinus ponderosa
Ponderosa Pine (Pinus ponderosa) is a Colorado-native tree suited to the Colorado Front Range, rated "Recommended" on the 2024 Front Range Tree Recommendation List. It matures to about 60–100 ft tall and 25–35 ft wide, slow-growing, needs low to medium water, and prefers full sun.
Colorado nativelow to medium water60–100 ft tall and 25–35 ft wideXeric / water-wiseDeer-resistant
Photos
- Photo 1: Walter Siegmund (talk)
- Photo 2: "Pinus ponderosa 15932" by Walter Siegmund (talk) is licensed under CC BY 2.5. To view a copy of this license, visit https://creativecommons.org/licenses/by/2.5/.
- Photo 3: "Pinus ponderosa 8144t" by Walter Siegmund (talk) is licensed under CC BY 2.5. To view a copy of this license, visit https://creativecommons.org/licenses/by/2.5/.
- Photo 4: "Pinus ponderosa 9681" by Walter Siegmund (talk) is licensed under CC BY-SA 3.0. To view a copy of this license, visit https://creativecommons.org/licenses/by-sa/3.0/.
- Photo 5: "Pinus ponderosa, west slope Ponderosa pine" by Matt Lavin is licensed under CC BY-SA 2.0. To view a copy of this license, visit https://creativecommons.org/licenses/by-sa/2.0/.
- Photo 6: (c) Jim Morefield, some rights reserved (CC BY)
At a glance
Will it survive here?
- Hardiness zones
- USDA 3–7
- Water needs
- low to medium water
- Sun
- Best in full sun.
- Soil
- clay, loam, sandy
- Soil pH
- 6.0–8.2
- Hail tolerance
- high
- Wind tolerance
- high
- Salt tolerance
- low
- Tolerates
- Slopes & erosion control
How big, what shape?
- Mature size
- 60–100 ft tall and 25–35 ft wide
- Mature form
- Pyramidal
- Spacing / clearance
- ~35 ft of clearance
- Growth rate
- Slow
- Lifespan
- Long-lived
What it looks like, and when
- Foliage
- Evergreen
Who else benefits
- Pollinator value
- low
- Deer
- Generally deer-resistant
- Colorado native
- Yes
- Native ecoregion
- foothills, montane
Site factors to consider
- Critical: Salt ToleranceIt has low salt tolerance, so keep it back from de-iced sidewalks, roadsides, and softener runoff, where salt burns roots and leaf edges.
Common problems on the Front Range
- Mountain pine beetle in drought-stressed pines
- Pine wilt nematode (esp. Scots and Austrian pine)
- Pine needle scale
These are general tendencies for this group of plants on the Front Range, not a diagnosis. Many are stress-driven and preventable with good siting and watering. For a specific plant or an active problem, consult a certified arborist or your local CSU Extension office.
Planting & establishment
Water deeply every 7–10 days through the first 2 summers (less for xeric pines in heavy clay, they're prone to root rot). Winter water 1–2×/month October–March when soil is dry and unfrozen, evergreens transpire year-round. Year 3: taper to twice per month in summer; only during extreme drought thereafter.
Frequently asked questions
- Is Ponderosa Pine good for the Colorado Front Range?
- Yes, Ponderosa Pine is a well-suited tree for Colorado's Front Range, rated "Recommended" on the 2024 Front Range Tree Recommendation List.
- How big does Ponderosa Pine get?
- It matures to about 60–100 ft tall and 25–35 ft wide.
- How much room does Ponderosa Pine need?
- Give Ponderosa Pine about 35 ft of clearance from buildings, fences, and other trees so the mature canopy isn't crowded.
- What shape does Ponderosa Pine grow into?
- Ponderosa Pine typically grows into a pyramidal, conical outline that is widest at the base. This is the species' usual mature form, named cultivars (columnar, weeping, or compact selections) can differ, so check the specific cultivar.
- Is Ponderosa Pine hardy on the Front Range?
- Ponderosa Pine is hardy in USDA 3–7. The Colorado Front Range spans roughly USDA 4b–6a, so it is well within range.
- How much water does Ponderosa Pine need?
- It needs low to medium water once established.
- How fast does Ponderosa Pine grow?
- Ponderosa Pine is a slow-growing tree. Growth rate depends on water and site conditions on the Front Range.
- How long does Ponderosa Pine live?
- Ponderosa Pine is long-lived, a multi-generational tree given good siting and care. Actual lifespan varies with site, water, and care.
- Is Ponderosa Pine native to Colorado?
- Yes. It is a Colorado native.
- Is Ponderosa Pine deer-resistant?
- Ponderosa Pine is generally considered deer-resistant, though no plant is deer-proof when browse pressure is high.
- Is Ponderosa Pine prone to pests or disease on the Front Range?
- Ponderosa Pine can be affected by mountain pine beetle in drought-stressed pines and other issues common to this group on the Front Range. These are general tendencies, not a diagnosis, many are stress-driven and preventable with good siting and watering. For a specific plant or an active problem, consult a certified arborist or CSU Extension.
