Calothamnus rupestris

Calothamnus rupestris

Endemic to Western Australia, particularly around Perth, where it prefers light to medium soils in a sunny, open position. It can be either a shrub or small tree with short, needle-like leaves and pink flowers in spring. It looks very similar to a pine. Unlike pine needles, the leaves have sparse fine hairs.

It can get to be between 3′ and 10′, but there seems to be debate about this, with some sites claiming 2′ and Ole Lantana, where I got the seed saying 0.5M, which is less than 2′.

Flowers form on one side of the stem and it is the fruits that give it the common name of mouse ears. Mine have yet to bloom, so I will have to wait and see them in person.

New growth has lots of yellow and red, and the red persists on needle tips for quite some time.

Pronunciation: kal-oh-THAM-nus rue-PES-tris

Species Meaning: referring to rocks

Calothamnus rupestris is native to Western Australia.

Cultivation Notes

It is both drought and frost resistant and considered very hardy. But not hardy enough to have survived the freeze of 2022 when it got down to 22F. Will probably replace and try again.

Propagation Notes

1/9/20 Sown 3 pots. Liberal seeding
2/4/20 1st germ
4/21/20 Perhaps need potting up. Seem stuck.

Can also be propagated from cuttings and will flowers quicker.

In Our Garden

Plant ID: P20146 | Seed ID: S2015

Found in Compost Heap,

We acquired this plant from Ole Lantana Seed.

Family: Myrtaceae

Genus: Calothamnus

Species: rupestris

Commonly known as: Mouse Ears, Cliff Netbush

Height: 3ft to 5ft

Spread: 3ft to 5ft

Growth Habit:
Evergreen
Flowering
Shrub
Sun Needs:
Full Sun
Soil Type:
Well-drained
Season of Interest:
Spring
Zone:
Zn9b - down to 25F

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