Helianthus petiolaris
TAXONOMIE
FamilleAsteraceae
GenreHelianthus
Zone4
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Plants of the World OnlineÀ PROPOS
Helianthus petiolaris, commonly known as the prairie sunflower, is a species in the Asteraceae family. Native to North America, it thrives in prairies and open fields. This annual plant is known for its bright yellow flowers and can grow up to 1.5 meters tall. It has a dormancy period during the winter months.
AUSSI CONNU SOUS LE NOM
Petioled Sunflower
Plains Sunflower
Prairie Sunflower
Helianthus integrifolius var. gracilis
Helianthus integrifolius var. integrifolius
Helianthus petiolaris var. petiolaris
APERÇU
VPDCalculer
EauSec
SolLimoneux
LumièreLumière directe (6 Heures)
Température25° C
Humidité40
GDD1 350
Dormance3 Mois
pH6,5
Pression1 013
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DÉTAILS
Instructions d'entretien
Helianthus petiolaris requires bright, direct sunlight for optimal growth. It prefers moderate temperatures and can tolerate dry conditions. Ensure the plant receives adequate light and water it sparingly, allowing the soil to dry out between waterings. Maintain moderate humidity levels.Récolte
Helianthus petiolaris, commonly known as the prairie sunflower, is typically ready for harvest about 90 days after planting. Harvesting should be done when the back of the flower heads turn yellow and the seeds are plump and firm. Cut the flower heads with a sharp knife or pruning shears, leaving a few inches of stem attached. Allow the heads to dry in a well-ventilated, dry area for several days. Once dried, the seeds can be easily removed by rubbing the heads. Ensure to store the seeds in a cool, dry place to maintain their viability.Sol
This plant prefers well-draining loamy soil. It can tolerate poor soil conditions but thrives best in moderately fertile soil. Ensure good drainage to prevent waterlogging, which can harm the plant.Engrais
Use a balanced fertilizer with a nutrient composition of 10-10-10. Fertilize the plant during the growing season, typically every 4-6 weeks, to support its growth and flowering.Rempotage
Repot Helianthus petiolaris annually or when it outgrows its container. Choose a slightly larger pot with good drainage. Carefully transfer the plant to avoid damaging the roots, and fill in with fresh soil.Propagation
Propagate this plant through seeds. Sow the seeds in early spring, either directly in the ground or in seed trays. Keep the soil moist until germination, which typically occurs within 1-2 weeks.Taille
Prune the plant to remove dead or damaged leaves and spent flowers. This encourages new growth and helps maintain the plant's shape. Pruning is best done during the growing season.Toxicité
Helianthus petiolaris is not toxic to pets or humans. It is safe to grow in gardens where pets and children are present.Supplémentaire
Helianthus petiolaris is a great addition to wildflower gardens and can attract pollinators such as bees and butterflies. It is relatively easy to care for, making it suitable for both novice and experienced gardeners.RÉVOLUTIONNEZ LE SOIN DE VOS PLANTES
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