Genus guide
Helianthus — 20 species
Part of the Daisy & aster family family (Asteraceae)
Helianthus is a North American genus of roughly 70 annual and perennial species, from the classic Sunflower (Helianthus annuus) to the tuber-forming Jerusalem Artichoke and the prairie-native Maximilian Sunflower. All are sun-lovers — at least six hours of direct light daily is essential for strong stems and full flowering. Water moderately and evenly; established perennial species tolerate short dry spells, while annuals prefer consistent moisture. The good news for pet owners: the ASPCA confirms sunflowers (Helianthus) are non-toxic to cats and dogs.
All Helianthus species we cover
- Ashy Sunflower
- Helianthus 'Lemon Queen'
- Helianthus × multiflorus 'Loddon Gold'
- Helianthus decapetalus 'Flore Pleno'
- Helianthus salicifolius
- Jerusalem Artichoke
- Jerusalem Artichoke
- Jerusalem Artichoke 'Red Fuseau'
- Jerusalem Artichoke 'Stampede'
- Maximilian Sunflower
- Pale-Leaved Sunflower
- Sawtooth Sunflower
- Stiff Sunflower
- Sunflower
- Swamp Sunflower
- Teddy Bear sunflower
- Thin-Leaved Sunflower
- Velvet Queen sunflower
- Western Sunflower
- Woodland Sunflower
Helianthus — frequently asked questions
Are Helianthus plants toxic to cats and dogs?
Most Helianthus are pet-safe. Of the 20 Helianthus species we cover, 20 are non-toxic on the ASPCA list and 0 carry a toxic or mildly-toxic rating. Even so, confirm the individual species before trusting it around pets.
How much light do Helianthus plants need?
Most Helianthus do best in direct sun. If yours stretches toward the window or loses its variegation it wants more light; scorched or bleached leaves mean it is getting too much direct sun.
Are Helianthus easy to care for?
Some Helianthus suit more experienced growers — several want strong light, sharp drainage or a specific seasonal rhythm. Check the individual species page for the exact regime.
How many Helianthus varieties are there?
Growli's care library covers 20 Helianthus species and varieties — browse them all above. They share a similar light, water and soil pattern, so once you learn one Helianthus, the rest follow closely.
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