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Quercus kelloggii
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Black Oak
( Quercus kelloggii )
Quercus kelloggii
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
Click on blue squares to see occurrence records.
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)
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42 Nurseries Carry This Plant
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About Black Oak (Quercus kelloggii)
42 Nurseries Carry This Plant
Add to My Plant List
The California Black Oak gets its name from the dark bark color of mature trees. It has distinctive, deeply lobed leaves that turn brilliant shades of yellow and orange in the fall. It is a large deciduous tree that can grow up to 80 feet tall. It also has a large, spreading root system.
Black Oak acorns are an important food source for a wide range of wildlife, including birds, deer, squirrels, and other mammals. It is also a host plant for butterflies and moths. It is a drought-tolerant tree with low moisture requirements. Black Oak grows best in acidic soil.
Quercus kelloggii. (n.d.). Sevenoaks Native Nursery. Retrieved October 18, 2023, from https://www.sevenoaksnativenursery.com/native-plants/trees/quercus-kelloggii/
Plant Description
Plant Type
Tree
Size
20 - 120 ft tall
35 ft wide
Form
Upright, Rounded, Upright Columnar
Growth Rate
Moderate, Slow
Dormancy
Winter Deciduous
Fragrance
None
Flower Color
Yellow, Cream, Green
Flowering Season
Spring, Winter
Wildlife Supported
Numerous types of wildlife are attracted to oaks. Many insects are attracted to Oaks generally, including the following butterflies, which use Oaks as host plant: California Sister, Propertius Duskywing, Mournful Duskywing, Golden Hairstreak, and Gold-Hunter's Hairstreak.
Butterflies & moths hosted ( 8
confirmed
, 171
likely
* )
SHOW ALL
Polyphemus moth
Antheraea polyphemus
Antheraea polyphemus
Fruit-Tree Leafroller Moth
Archips argyrospila
Archips argyrospila
Decodes fragariana
Decodes fragariana
Chionodes trichostola
Chionodes trichostola
Chionodes powelli
Chionodes powelli
Xenolechia querciphaga
Xenolechia querciphaga
Stigmella variella
Stigmella variella
Landscaping Information
Sun
Full Sun, Part Shade, Full Shade
Moisture
Low
Summer Irrigation
Max 2x / month once established
Nurseries
Carried by 42
Ease of Care
Very Easy
Cold Tolerance
Tolerates cold to 0° F
Soil Drainage
Medium
Soil Description
Occurs in many soil types. Prefers acidic soil.. Tolerates Serpentine Soil. Soil PH: 5.0 - 8.0
Common uses
Bank Stabilization, Deer Resistant, Bird Gardens, Butterfly Gardens
Companion Plants
Often found with
Ponderosa Pine
(
Pinus ponderosa
),
White Fir
(
Abies concolor
),
Incense Cedar
(
Calocedrus decurrens
) and
Sugar Pine
(
Pinus lambertiana
). Understory plants include
Snowberry
(
Symphoricarpos albus
,
Hummingbird Sage
(
Salvia spathacea
), Larkspur (
Delphinium species
), Manzanita (
Arctostaphylos species
), Gooseberries (
Ribes species
), and ferns
Maintenance
Vulnerable to Sudden Oak Death. Sterilize any cutting tools before and after pruning to prevent infections and avoid spreading Sudden Oak Death
Propagation
?
By acorns. For propagating by seed: Fresh seeds sow in fall outdoors or stratify to hold for spring sowing. If started indoors or in glasshouse, stratify first for 1-2 mos. (USDA Forest Service 1974).
Sunset Zones
?
1, 2, 3, 4, 5, 6*, 7*, 8, 9, 14*, 15*, 16*, 17, 18*, 19, 20, 21
Natural Setting
Site Type
Slopes and valleys between 2,000 and 8,000 ft. in the Coast Ranges, Transverse Range, Peninsular Range, and lower elevations of the Sierra, where it is found as part of deciduous oak woodland, mixed evergreen forest, or other woodland/forest type
Climate
Annual Precipitation: 5.6" - 151.3", Summer Precipitation: 0.15" - 5.78", Coldest Month: 10.8" - 54.1", Hottest Month: 34.1" - 79.3", Humidity: 0.10" - 29.60", Elevation: 5" - 14090"
Alternative Names
Common Names
: California Black Oak, Cream Bush
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Black Oak
Quercus kelloggii
Sources include:
Wikipedia
. All text shown in the "About" section of these pages is available under the
Creative Commons Attribution-ShareAlike License
. Plant observation data provided by the participants of the
California Consortia of Herbaria
, Sunset information provided by
Jepson Flora Project
. Propogation from seed information provided by the
Santa Barbara Botanical Garden
from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include
CalPhotos
,
Wikimedia Commons
, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include
Calflora
,
CNPS Manual of Vegetation Online
,
Jepson Flora Project
,
Las Pilitas
,
Theodore Payne
,
Tree of Life
,
The Xerces Society
, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from
PRISM Climate Group, Oregon State University
, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.
Links:
Jepson eFlora Taxon Page
CalPhotos
Wikipedia
Calflora
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