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Flannel flower Actinotus helianthi

Flannel flower (Actinotus helianthi) is an evergreen perennial flowering plant in the Apiaceae family, native to Sandstone heaths of eastern New South Wales and Queensland. It grows 30–90 cm (12–35 in) tall and 30–60 cm (12–24 in) wide, wants full sun and low water, and is hardy to about -2 °C (28 °F). Space plants about 40 cm (16 in) apart.

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Flannel flower (Actinotus helianthi)
Photo: (c) Shelomi Doyle, some rights reserved (CC BY), uploaded by Shelomi Doyle · CC-BY

Flannel flower at a glance

TypePerennial flowering plant, evergreen
FamilyApiaceae
Mature height30–90 cm (12–35 in)
Mature spread30–60 cm (12–24 in)
Spacing40 cm (16 in) centre to centre
SunFull sun, at least 6 h of direct sun a day
WaterLow; drought tolerance moderate, waterlogging tolerance none
Soil pH5–6.5
Cold hardinessAbout -2 °C (28 °F) once established (roughly USDA zone 9)
Heat stressLikely above about 36 °C (97 °F)
Floweringfrom about September for 9–17 weeks (northern hemisphere; later in cold climates, earlier in warm ones)
Wind toleranceModerate
Pollinator valueHigh
EdibleNot grown as food
Native toSandstone heaths of eastern New South Wales and Queensland
Common in gardens of🇦🇺 Australia

Is Flannel flower toxic?

Felted leaves can irritate skin and eyes.

If a child or pet may have eaten part of a plant, call a poison centre or vet straight away.

Companion planting: what to grow with Flannel flower

No well-documented helpful pairing. Group it with plants that like full sun and low water.

Questions about Flannel flower

How far apart should I plant Flannel flower?
About 40 cm (16 in) apart, centre to centre. A mature plant spreads 30–60 cm (12–24 in).
Does Flannel flower need full sun?
Full sun: at least 6 hours of direct sun a day.
How much water does Flannel flower need?
Low water. Drought tolerance is moderate and waterlogging tolerance none.
How cold-hardy is Flannel flower?
It tolerates about -2 °C (28 °F) once established, roughly USDA zone 9.
When does Flannel flower flower?
From about September for 9–17 weeks (northern hemisphere; later in cold climates, earlier in warm ones).
Is Flannel flower poisonous to cats and dogs?
For cats it is not known to be toxic; for dogs not known to be toxic; for people not known to be toxic. Felted leaves can irritate skin and eyes.
What grows well with Flannel flower?
There is no well-documented companion pairing for Flannel flower. Group it with plants that like the same sun (full sun) and water (low).

Sources and evidence

Evidence grade B (B: extension service or peer-reviewed).

Notes and assumptions

Reference values for planning, not horticultural, veterinary or medical advice. Varieties, soils and local climates differ: check with a local nursery or extension service.

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