Turkish Filbert/Hazelnut
Corylus colurna
Turkish Filbert/Hazelnut (Corylus colurna) is a tree suited to the Colorado Front Range, rated "Recommended for Most Sites" on the 2024 Front Range Tree Recommendation List. It matures to about 40–60 ft tall and 25–35 ft wide, needs low to medium water, and prefers full sun to partial shade to dappled sun.
low to medium water40–60 ft tall and 25–35 ft wideXeric / water-wiseDeer-resistant
Photos
- Photo 1: "Corylus colurna (1)" by Lottis 80 is licensed under CC BY 3.0. To view a copy of this license, visit https://creativecommons.org/licenses/by/3.0/.
- Photo 2: "Corylus colurna RBG1" by Mykola Swarnyk 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 3: Orjen, Pavle Cikovac
- Photo 4: "Corylus colurna (2)" by Lottis 80 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: (c) Sean Crocker, some rights reserved (CC BY)
- Photo 6: (c) Sean Crocker, some rights reserved (CC BY)
At a glance
Will it survive here?
- Hardiness zones
- USDA 4–8
- Water needs
- low to medium water
- Sun
- Best in full sun; tolerates partial shade, dappled sun.
- Soil
- clay, loam
- Soil pH
- 6.0–8.2
- Hail tolerance
- moderate
- Wind tolerance
- moderate
- Salt tolerance
- moderate
How big, what shape?
- Mature size
- 40–60 ft tall and 25–35 ft wide
- Mature form
- Pyramidal
- Spacing / clearance
- ~35 ft of clearance
- Growth rate
- Moderate
- Lifespan
- Medium
What it looks like, and when
- Foliage
- Deciduous
Who else benefits
- Pollinator value
- low
- Deer
- Generally deer-resistant
- Colorado native
- No
Site factors to consider
- Watch: TransplantsIt resents being moved, so start with smaller stock, plant in spring, and get the spot right the first time.
Planting & establishment
Water deeply every 7–10 days through the first 2 summers. Winter water 1–2×/month October–March when soil is dry and unfrozen, winter desiccation is a top killer of newly-planted trees. Year 3: taper to 2×/month in summer, then rely on natural precipitation.
Frequently asked questions
- Is Turkish Filbert/Hazelnut good for the Colorado Front Range?
- Yes, Turkish Filbert/Hazelnut is a well-suited tree for Colorado's Front Range, rated "Recommended for Most Sites" on the 2024 Front Range Tree Recommendation List.
- How big does Turkish Filbert/Hazelnut get?
- It matures to about 40–60 ft tall and 25–35 ft wide.
- How much room does Turkish Filbert/Hazelnut need?
- Give Turkish Filbert/Hazelnut about 35 ft of clearance from buildings, fences, and other trees so the mature canopy isn't crowded.
- What shape does Turkish Filbert/Hazelnut grow into?
- Turkish Filbert/Hazelnut 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 Turkish Filbert/Hazelnut hardy on the Front Range?
- Turkish Filbert/Hazelnut is hardy in USDA 4–8. The Colorado Front Range spans roughly USDA 4b–6a, so it is well within range.
- How much water does Turkish Filbert/Hazelnut need?
- It needs low to medium water once established.
- How fast does Turkish Filbert/Hazelnut grow?
- Turkish Filbert/Hazelnut is a moderate-growing tree. Growth rate depends on water and site conditions on the Front Range.
- How long does Turkish Filbert/Hazelnut live?
- Turkish Filbert/Hazelnut has a moderate lifespan for a Front Range tree. Actual lifespan varies with site, water, and care.
- Is Turkish Filbert/Hazelnut native to Colorado?
- No. It is not a Colorado native, but it grows well on the Front Range.
- Is Turkish Filbert/Hazelnut deer-resistant?
- Turkish Filbert/Hazelnut is generally considered deer-resistant, though no plant is deer-proof when browse pressure is high.
