Knife-leaf wattle (Acacia cultriformis)
Care, watering, light and tips for Knife-leaf wattle on Floravia.
Quick facts
- Family: Fabaceae
- Difficulty: Easy to care for
- Watering: every 7 days
- Light: Full sun
- Temperature: 5–35 °C
- Toxicity: Toxic to pets
About Knife-leaf wattle
Acacia cultriformis, also known as Knife-leaf Wattle or Knife Acacia, is an evergreen shrub or small tree native to Australia. It is characterized by its unusual blade-shaped or triangular phyllodes (modified leaf stalks) and its clusters of bright yellow flowers that bloom in spring. It's an excellent ornamental plant for gardens, hedges, or as a standalone specimen, adding an exotic and colorful touch.
Native range
Australia (New South Wales, Queensland, Victoria)
Care tips
It requires full sun for optimal flowering and healthy growth. It is drought-tolerant once established but appreciates moderate watering in hot, dry climates. It prefers well-drained soils, even poor or sandy ones, and a common mistake to avoid is overwatering, which can lead to root rot.
How to save a dying Knife-leaf wattle
- Warning signs
- Yellowing or browning leaves, excessive leaf drop, slow or no growth.
- First aid
- Check drainage and soil moisture; ensure it gets full sun.
- What kills it
- Overwatering or constant shade; they are very sensitive to waterlogging.
- Can it be saved?
- Yes, if you act quickly and correct light and watering conditions.