Linden
Tilia americana
Linden (Tilia americana) is a tree suited to the Colorado Front Range, rated "Recommended" on the 2024 Front Range Tree Recommendation List. It matures to about 50–75 ft tall and 30–50 ft wide, fast-growing, needs medium water, and prefers full sun to partial shade. Less preferred by Japanese beetle.
medium water50–75 ft tall and 30–50 ft wideZones 2–3 (keep it back from the house)
Photos
- Photo 1: "Tilia americana - American Basswood leaves" by Virens (Latin for greening) is licensed under CC BY 2.0. To view a copy of this license, visit https://creativecommons.org/licenses/by/2.0/.
- Photo 2: "Tilia americana - American Basswood flowers and leaf" by Virens (Latin for greening) is licensed under CC BY 2.0. To view a copy of this license, visit https://creativecommons.org/licenses/by/2.0/.
- Photo 3: "Tilia americana - American Basswood tree" by Virens (Latin for greening) is licensed under CC BY 2.0. To view a copy of this license, visit https://creativecommons.org/licenses/by/2.0/.
- Photo 4: (c) naturalist charlie, some rights reserved (CC BY), uploaded by naturalist charlie
- Photo 5: "Tilia americana - American Basswood" by Fritzflohrreynolds 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 6: (c) Douglas Goldman, some rights reserved (CC BY-SA), uploaded by Douglas Goldman
At a glance
Will it survive here?
- Hardiness zones
- USDA 2–8
- Water needs
- medium water
- Sun
- Best in full sun; tolerates partial shade.
- Soil
- clay, loam, sandy
- Soil pH
- 6.0–8.2
- Hail tolerance
- moderate
- Wind tolerance
- moderate
- Salt tolerance
- high
- Firewise (defensible space)
- Zones 2–3 (keep it back from the house)
How big, what shape?
- Mature size
- 50–75 ft tall and 30–50 ft wide
- Mature form
- Oval / upright
- Spacing / clearance
- ~50 ft of clearance
- Growth rate
- Fast
- Lifespan
- Medium
What it looks like, and when
- Bloom time
- early summer, mid summer
- Bloom color
- yellow, cream
- Fall color
- Yellow
- Foliage
- Deciduous
Who else benefits
- Pollinator value
- high
- Deer
- Not deer-resistant
- Colorado native
- No
Site factors to consider
- Critical: Cold HardinessThe average low suits it fine; our real cold risk is the swings, late frosts, and intense winter sun, so wrap young trunks and give it shelter.
- Watch: Leaf ScorchIts leaf edges brown in hot, dry wind, so give it steady summer water and some shelter from the worst afternoon blast.
Common problems on the Front Range
- Aphids and the resulting honeydew and sooty mold
- Japanese beetle defoliation
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 Linden good for the Colorado Front Range?
- Yes, Linden is a well-suited tree for Colorado's Front Range, rated "Recommended" on the 2024 Front Range Tree Recommendation List.
- How big does Linden get?
- It matures to about 50–75 ft tall and 30–50 ft wide.
- How much room does Linden need?
- Give Linden about 50 ft of clearance from buildings, fences, and other trees so the mature canopy isn't crowded.
- What shape does Linden grow into?
- Linden typically grows into an upright-oval crown, taller than it is wide. This is the species' usual mature form, named cultivars (columnar, weeping, or compact selections) can differ, so check the specific cultivar.
- Is Linden hardy on the Front Range?
- Linden is hardy in USDA 2–8. The Colorado Front Range spans roughly USDA 4b–6a, so it is well within range. That said, it carries a cold-hardiness caution: The average low suits it fine; our real cold risk is the swings, late frosts, and intense winter sun, so wrap young trunks and give it shelter.
- How much water does Linden need?
- It needs medium water once established.
- How fast does Linden grow?
- Linden is a fast-growing tree. Growth rate depends on water and site conditions on the Front Range.
- How long does Linden live?
- Linden has a moderate lifespan for a Front Range tree. Actual lifespan varies with site, water, and care.
- What color does Linden turn in fall?
- Linden turns yellow in autumn. Fall color intensity varies with the season and site on the Front Range.
- Is Linden native to Colorado?
- No. It is not a Colorado native, but it grows well on the Front Range.
- Is Linden deer-resistant?
- No. Linden is not considered deer-resistant and may need protection where deer browse.
- Is Linden a good firewise plant near the house?
- Linden is suitable in defensible-space zones 2–3, best kept back from the house rather than in the area right against the structure. This is general suitability guidance based on CSU Extension firewise plant lists, 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 Linden prone to pests or disease on the Front Range?
- Linden can be affected by aphids and the resulting honeydew and sooty mold 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.
