Helianthus annuus Sunflower (Compositae)

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Helianthus annuus
Sunflower
(1 Page of 5)

The Helianthus annuus plant species is found in Western N. America. An occasional garden escape in Britain. It is a member of the Compositae family. Common gardeners may know the plant as Sunflower.

Cultivation | Propagation | General Uses
Medicinal | Edible Uses

Latin Name:  Helianthus annuus
Common Name:  Sunflower
Family:  Compositae
Author:  L.

Known Hazards:  The growing plant can accumulate nitrates, especially when fed on artificial fertilizers[76]. The pollen or plant extracts may cause allergic reactions[222].

Mature Height:  3   Mature Width:  0.3

Habitat:  Open dry or moderately moist soils on the plains[60].

Propagation Notes: Seed - sow in mid spring in situ. An earlier start can be made by sowing 2 - 3 seeds per pot in a greenhouse in early spring. Use a fairly rich compost. Thin to the strongest seedling, give them an occasional liquid feed to make sure they do not become nutrient deficient and plant them out in late spring or early summer.

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Cultivation | Propagation | General Uses
Medicinal | Edible Uses

The information above has been supplied solely via the hard work and dedication of the team at 'Plants for a Future'.
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