#1023 most planted
Quercus lobata
Valley oak · also Roble, California white oak
BroadleafDeciduous
175
trees mapped
0.00%
of all named trees
4
cities
12 in
median trunk (30 cm, 128 measured)
35 yr
median age (71% have a planting date)
Report an issue with this species
This large, deciduous California oak features deeply lobed leaves and thick, ridged bark. It requires consistent groundwater and deep, moist loam, making it important to consider its water needs for urban planting, especially given its conservation status.
Where it grows
Trees in each city's inventory, with the share of that city's named trees this species accounts for.
- 1640.03%35 yr18 in
- 90.01%—3.0 in
- 10.00%——
- 10.01%—0.4 in
Traits
- Form
- Broadleaf
- Foliage
- Deciduous
- Mature height
- 50–70 ft
- Canopy spread
- 50 ft
- Lifespan
- 600 years
- Growth rate
- Fast
- Soil
- Well-drained, Loamy, Moist
- Water needs
- Moderate
- Drought tolerance
- Low
- Wildlife value
- High
- Blooms
- Mar, Apr, May
Trunk diameters across every city: median 12 in, mean 17 in, 90th percentile 36 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.
Mediterranean Forests, Woodlands & Scrub
- California coastal sage and chaparral
- California interior chaparral and woodlands
- California montane chaparral and woodlands
Temperate Grasslands, Savannas & Shrublands
- California Central Valley grasslands
Other Quercus in the catalogue
74 of the top 2,000 species are in this genus.
