Ilex
Holly
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Ilex is a diverse genus including evergreen or deciduous trees, shrubs, and climbers found globally in tropical to temperate zones. Many species are valued in urban landscapes for their shiny green leaves and red berries, with some exhibiting tolerance to drought and smog, making them suitable for various challenging conditions.
Where it grows
Trees in each city's inventory, with the share of that city's named trees this species accounts for.
- 1,2690.11%—2.4 in
- 3830.08%36 yr7.5 in
- 1940.03%—5.0 in
- 830.04%0.6 yr2.0 in
- 530.04%—6.0 in
- 320.02%—13 in
- 300.09%—8.7 in
- 160.01%—4.1 in
- 110.01%23 yr13 in
- 80.01%—1.6 in
- 60.00%——
- 50.00%—7.9 in
- 20.00%——
- 10.00%—3.9 in
- 10.00%——
- 10.00%—27 in
- 10.00%—3.9 in
- 10.00%—2.0 in
- 10.00%—2.0 in
Traits
- Mature height
- 13–46 ft
- Canopy spread
- 15–25 ft
- Growth rate
- Moderate
- Soil
- Well-drained, Sandy
- Water needs
- Moderate
- Drought tolerance
- Moderate
- Pollution tolerance
- High
- Wildlife value
- High
- Blooms
- Feb, Mar, Apr, May
Trunk diameters across every city: median 3.3 in, mean 4.6 in, 90th percentile 8.0 in. Measured at breast height, as published by each inventory.
Native range
Terrestrial ecoregions where this species is native. Trees in the dataset mostly stand well outside it.
Tropical & Subtropical Moist Broadleaf Forests
- Central Range Papuan montane rain forests
- Northern New Guinea montane rain forests
- Northern Thailand-Laos moist deciduous forests
- Yunnan Plateau subtropical evergreen forests
Other Ilex in the catalogue
17 of the top 2,000 species are in this genus.
