Bosnian Pine (Emerald Arrow)
Pinus heldreichii
Bosnian Pine (Emerald Arrow) (Pinus heldreichii) is a tree suited to the Colorado Front Range, rated "Recommended" on the 2024 Front Range Tree Recommendation List. It matures to about 20 to 30 ft tall and 6 to 12 ft wide, slow-growing, needs medium water, and prefers full sun. Narrow form; often listed as P. leucodermis (synonym).
medium water20 to 30 ft tall and 6 to 12 ft wide
Photos
- Photo 1: "Pinus heldreichii Pirin 0" by Esther Westerveld from Haarlemmermeer, Nederland is licensed under CC BY 2.0. To view a copy of this license, visit https://creativecommons.org/licenses/by/2.0/.
- Photo 2: Fuoco Fatuo
- Photo 3: "Pinus heldreichii Satellit 04" by Agnieszka Kwiecień (Nova) is licensed under CC BY 2.5. To view a copy of this license, visit https://creativecommons.org/licenses/by/2.5/.
- Photo 4: (c) Patrick Lam, some rights reserved (CC BY)
- Photo 5: (c) Vasileia Sef, some rights reserved (CC BY)
- Photo 6: "Pinus heldreichii Bijela gora above Borovi do" by Orjen is licensed under CC BY-SA 4.0. To view a copy of this license, visit https://creativecommons.org/licenses/by-sa/4.0/.
At a glance
Will it survive here?
- Hardiness zones
- USDA 3 to 7
- Water needs
- medium water
- Sun
- Best in full sun.
- Soil
- loam, sandy, well drained only
- Soil pH
- 6.0 to 8.2
- Hail tolerance
- high
- Wind tolerance
- high
- Salt tolerance
- moderate
How big, what shape?
- Mature size
- 20 to 30 ft tall and 6 to 12 ft wide
- Mature form
- Pyramidal
- Spacing / clearance
- ~12 ft of clearance
- Growth rate
- Slow
- Lifespan
- Long-lived
What it looks like, and when
- Foliage
- Evergreen
Who else benefits
- Pollinator value
- low
- Deer
- Not rated
- Colorado native
- No
Also worth knowing
- Fire rating
- Ignitable (CSU): keep 30+ ft from the house, thinned
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.
Frequently asked questions
- Is Bosnian Pine (Emerald Arrow) good for the Colorado Front Range?
- Yes, Bosnian Pine (Emerald Arrow) is a well-suited tree for Colorado's Front Range, rated "Recommended" on the 2024 Front Range Tree Recommendation List.
- How big does Bosnian Pine (Emerald Arrow) get?
- It matures to about 20 to 30 ft tall and 6 to 12 ft wide.
- How much room does Bosnian Pine (Emerald Arrow) need?
- Give Bosnian Pine (Emerald Arrow) about 12 ft of clearance from buildings, fences, and other trees so the mature canopy isn't crowded.
- What shape does Bosnian Pine (Emerald Arrow) grow into?
- Bosnian Pine (Emerald Arrow) 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 Bosnian Pine (Emerald Arrow) hardy on the Front Range?
- Bosnian Pine (Emerald Arrow) is hardy in USDA 3 to 7. The Colorado Front Range spans roughly USDA 4b to 6a, so it is well within range.
- How much water does Bosnian Pine (Emerald Arrow) need?
- It needs medium water once established.
- How fast does Bosnian Pine (Emerald Arrow) grow?
- Bosnian Pine (Emerald Arrow) is a slow-growing tree. Growth rate depends on water and site conditions on the Front Range.
- How long does Bosnian Pine (Emerald Arrow) live?
- Bosnian Pine (Emerald Arrow) is long-lived, a multi-generational tree given good siting and care. Actual lifespan varies with site, water, and care.
- Is Bosnian Pine (Emerald Arrow) native to Colorado?
- No. It is not a Colorado native, but it grows well on the Front Range.
- Is Bosnian Pine (Emerald Arrow) a good firewise plant near the house?
- Bosnian Pine (Emerald Arrow) is listed by CSU Extension among the more ignitable plants, so keep it 30 or more feet from the house and keep it thinned and well maintained. This is general guidance based on CSU Extension Fact Sheet 6.305 (2025), not a guarantee that any plant won't burn, a well-irrigated, well-maintained plant is the goal. Follow CSU Extension defensible-space guidance and check with your local fire district before planting in the wildland-urban interface.
- Is Bosnian Pine (Emerald Arrow) prone to pests or disease on the Front Range?
- Bosnian Pine (Emerald Arrow) 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.
