Gray Sheoak

Casuarina glauca

Native to:
Australia, Guam, U.S. Minor Outlying Islands

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Casuarinaceae
Genus:
Casuarina
Species:
Casuarina glauca
USDA Symbol:
CAGL11

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Tree
Height:
2000 cm
Light Requirements:
Full Sun
Drought Tolerance:
High

Garden & Ecology Notes

Wildlife Value:
birds
Deer Resistant:
Yes
Salt Tolerant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from the root system and trunk after fire or mechanical damage.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
tolerates dry to moderate moisture
Notes:
often found in coastal and riverine areas

Propagation & Germination

Stratification:
None required
Germination Time:
14–60 days
Notes:
Seeds germinate readily without pretreatment. Fresh seed germinates best; viability declines with storage.

The above propagation data sourced from Claude AI