Alloxylon Species, Red Silky Oak, Tree Waratah
Alloxylonflammeum

Family: Proteaceae (pro-tee-AY-see-ee)
Genus: Alloxylon (al-loh-ZY-lon)
Species: flammeum (FLAM-ee-um)

Category
Trees
Tropicals and Tender Perennials

Water Requirements

Sun Exposure
Full Sun
Sun to Partial Shade

Foliage
Grown for foliage
Evergreen

Foliage Color

Height
15-20 ft. (4.7-6 m)
20-30 ft. (6-9 m)

Spacing
12-15 ft. (3.6-4.7 m)

Hardiness
USDA Zone 11: above 4.5 °C (40 °F)

Where to Grow

Danger
N/A

Bloom Color
Red

Bloom Characteristics

Bloom Size

Bloom Time
Late Winter/Early Spring
Mid Spring
Late Spring/Early Summer

Other details

Soil pH requirements
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information
Non-patented

Propagation Methods
From semi-hardwood cuttings

Seed Collecting
Bag seedheads to capture ripening seed
Allow pods to dry on plant; break open to collect seeds