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Clarence A. Rechenthin @ USDA-NRCS PLANTS Database |
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Summary
Physical Characteristics
Helianthus petiolaris is a ANNUAL growing to 3 m (9ft 10in).
It is hardy to zone (UK) 4. It is in flower from July to September. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers dry or moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
Habitats
Cultivated Beds;
Edible Uses
Edible Parts: Seed
Edible Uses:
Seed - raw or cooked. An oily texture[161, 177]. The seed can be ground into a powder and kneaded into seed butter[257].
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Salve
The powdered leaves, either on their own or in an ointment, have been used as a dressing for sores and swellings[257].
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Other Uses
Cultivation details
Succeeds in most soils in a sunny position[1]. Requires a rich soil[1]. Dislikes shade[1]. Grows well on dry soils[200]. The young growth is extremely attractive to slugs, plants can be totally destroyed by them[K]. This species hybridizes in the wild with H. annuus[274]. Members of this genus are rarely if ever troubled by browsing deer or rabbits[233].
Temperature Converter
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Propagation
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.
Other Names
If available other names are mentioned here
Found In
Countries where the plant has been found are listed here if the information is available
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.
Conservation Status
IUCN Red List of Threatened Plants Status :
Expert comment
Author
Nutt.
Botanical References
43200235
Links / References
For a list of references used on this page please go here
Readers comment
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Subject : Helianthus petiolaris
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