Quercus geminata
This evergreen coastal oak native to the SE U.S. coastal plain is Florida-native, hardy in zones 9b–10a, drought- and hurricane-tolerant, grows as a canopy or understory tree in sandy scrub and flatwoods, produces acorns that feed wildlife, regrows after fire, and provides wildlife habitat, erosion control, fire resilience, and carbon storage.
Common Names
Sand Live Oak
Summary
Sand Live Oak is a native evergreen shrub or small tree of the Southeastern United States, occurring on sandy coastal dunes, backdunes, sandhills, coastal hammocks, and inland dry sandy sites from northern Florida west to Louisiana and northeast to North Carolina. It typically grows 20–50 ft tall with a broadly spreading crown. Leaves are thick and leathery, 1.5–2.5 in long, with dark green upper surfaces and dull gray to whitish pubescent undersides; margins are revolute and the blade is cupped. Bark is rough, dark brown and deeply furrowed. Acorns are small (0.4–0.8 in long) with tapering cups, and the plant can form colonies that stabilize banks and slopes. It is wind- and drought-tolerant and serves as a wildlife food source via acorns.
Cultivation and uses: Propagation is by seed; cuttings are not practical, seeds germinate readily, and acorns are viviparous, requiring immediate planting after harvest with a depth about the acorn diameter. Outplant in depressions to mimic dune-building, protect seeds from herbivores and high salinity, and avoid polyacrylamide gel for nursery transplants to promote deep roots. Hardiness zones 9b–10a; tolerates wind, drought, and salt spray, and requires little maintenance. Common landscape uses include specimen or accent tree in dry, sandy soils; it provides wildlife benefits by supplying acorns for mammals and acting as a larval host for several butterflies; pollen is abundant and allergenic.
Lifecycle
Perennial
Height
20-50 ft
Spread
20 ft-49 ft 3 in
Hardiness Zones
Zones 9b-10a
Sunlight Requirements
Ideally full sun to partial sun, tolerates partial shade to full sun.
Soil Type
Deep sandy soils
Soil Drainage
Well-drained sandy soils
Soil pH
6.5-7.5
Bloom Color
Insignificant
Bloom Time
Spring
Foliage Color
Upper leaf surface dark green; lower leaf surface dull gray to white.
Fall Foliage Color
No fall color
Leaf Lifecycle
Evergreen broadleaf
Growth Rate
Slow
Seasons of Interest
Spring and Fall
Propagation Methods
Seeds, Cuttings, Division
Attracts Wildlife
Attracts birds and butterflies
Taxonomy
- Taxonomic Rank
- Species
- Author
- Small
- Publication
- Bull. Torrey Bot. Club 24: 438 (1897)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Fagales
- Family
- Fagaceae
- Genus
- Quercus
- Subgenus
- Quercus subgen. Quercus
- Section
- Quercus sect. Virentes
Synonyms
Quercus geminata var. grandifolia Quercus geminata var. reasoneri Quercus virginiana f. grandifolia Quercus virginiana var. geminata