Triodia scariosa -Porcupine Grass

An interesting tussock forming perennial from inland areas of Australia, worth planting in larger gardens and landscaping for a real wow factor. Growth is by creeping stolons, and older clumps form eye catching ring shapes up to 3 metres wide. This can be replicated in shorter time by arranging small plant clumps into the desired shapes. Spectacular in flower when the name ‘porcupine grass’ really comes into play, though this could also reflect the irritating nature of the seeds heads! Flowering is after rain, generally spring and summer. Naturally occurring in clay and alkaline soils in arid and semi arid areas. Propagation is by division of the clumps. A good shelter plant for small mammals, birds and lizards with its dense habit, which also makes it a great plant to combat soil erosion.


Scientific Name:Triodia scariosa
Common Name:Spinifex Grass
Plant Type:Grass or grass-like, Clumping perennial
Height:0.6 ~ 1 metre
Width:0.5 ~ 3 metres
Flower Colour:Cream, Gold, Brown
Flowering Time:Spring, Summer
Ph Level:Neutral, Alkaline
Soil Type:Clay, Loamy, Sandy loam, Clay loam, Poor soil
Plant Environment:Low maintenance garden, Drought resistant
Climate Zone:Warm temperate, Cool temperate, Mediterranean, Semi-arid, Arid
Growth Habit:Dense foliage
Soil Moisture:Dry, Well-drained
Propagation Method:Seed, Division
Frost Tolerance:Tolerates light frost
Plant Usage:Feature plant, Wow factor
Special Uses:Erosion control
Attracts Wildlife:Seed eating birds, Mammals, Lizards






Once you have found the plant that you want, the next step is to find where to get it. Visit or ring your favourite nursery to see if they have it in stock. If they don’t, they may be able to order it in for you.  Specialist nurseries are also able to give great advice, and if they don’t have the plant you want, they can often suggest an alternative to you. Below is a list of our favourite specialist nurseries, and some who do mail order. Click on the links for their details-


The Wildflower Place Erina – NSW 


Sydney Wildflower Nursery – NSW


Newcastle Wildflower Nursery – NSW


Cool Country Natives – ACT


Wimmera Native Nursery – Victoria


Zanthorrea Nursery – Perth WA


Manuka Native Nursery – South Australia


Sydney Wildflower Nursery – mail order


The Native Shop – mail order




Angus recommends Bush Tucker fertiliser for native plants.