Acacia williamsonii

Acacia williamsonii

Native to:
Australia

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Fabaceae
Genus:
Acacia
Species:
Acacia williamsonii

Growth Characteristics

Growth Habit:
Shrub
Height:
300 cm
Drought Tolerance:
High
Bloom Months:
jul,aug,sep,oct
Bloom Colors:
yellow
Landscaping Shrub:
Yes

Keystone Species Ranking

Caterpillar Keystone:
★★★☆☆ Butterfly & moth species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:
bees, birds
Deer Resistant:
Yes
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Typical of Australian acacias, resprouts from lignotuber or rootstock following fire. Seeds may also germinate prolifically post-fire due to heat scarification.

Propagation & Germination

Stratification:
None required
Scarification:
Seed coat scarification required before sowing
Germination Time:
14–42 days
Notes:
Seeds require scarification (boiling water treatment) to break hard seed coat dormancy. Germinates readily after treatment.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: Sow @ 20°C. Seed germinates within 3 months Requires scarification. Nick or rub between sheets of sandpaper. Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard water and any seeds that remain floating. * immerse in boiling water for 1 minute, then soak x 2 days in cool water

Source: Ontario Rock Garden & Hardy Plant Society