Helianthus argophyllus
silverleaf sunflower
Family Asteraceae
IUCN: Least concern Wikipedia (opens in a new tab)
About
Silverleaf sunflower is a tall annual from the Texas coast whose leaves and stems look silvery under a dense coat of hairs.
Care at a glance
- Pet safety
- Not recorded. We have no source on whether this plant is safe for cats, dogs or other pets — that is not the same as safe. Keep it out of reach until you have checked.
- People
- Not recorded.
- Light
- Full sun gives the most flowers; partial shade is tolerated. General guidance for the genus
- Propagation
- Seed or stem cuttings. General guidance for the genus
- Mature size
- Up to about 3 m tall.
“General guidance for the genus” marks advice sourced for the genus as a whole rather than this species.
Field notes
Morphology
An annual herb up to about 3 m. Each plant has 1–5 heads, each with 15–20 rays around 150 or more disc florets.
Distribution & habitat
Native to coastal Texas, where it grows in sandy ground near the sea. Naturalised elsewhere, including Florida, North Carolina, Argentina, Africa and Australia.
Conservation
Assessed as Least Concern by the IUCN.
Habitat
- Altitude
- Not recorded
- Altitude class
- —
- Native to
- United States
- IUCN status
- Least concern
Cultivation
- Difficulty
- Not recorded
Text adapted from Wikipedia, CC BY-SA 4.0.
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