Helianthus angustifolius
TAXONOMIE
FamilleAsteraceae
GenreHelianthus
Zone5
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Plants of the World OnlineÀ PROPOS
Helianthus angustifolius, commonly known as the Swamp Sunflower, is a perennial plant native to the southeastern United States. It belongs to the Asteraceae family and is known for its bright yellow flowers that bloom in late summer to fall. The plant thrives in wetland areas and can grow up to 6 feet tall. It has a dormancy period during the winter months.
AUSSI CONNU SOUS LE NOM
Coreopsis Angustifolia
Leighia Bicolor
Narrow-Leaf Sunflower
Narrow-Leaved Sunflower
Rudbeckia Angustifolia
Swamp Sunflower
Discomela angustifolius
Helianthus angustifolius subsp. angustifolius
Helianthus angustifolius var. angustifolius
Helianthus angustifolius var. planifolius
APERÇU
VPDCalculer
EauMouillé
SolLimoneux
LumièreLumière directe (6 Heures)
Température25° C
Humidité60
GDD1 800
Dormance3 Mois
pH6,5
Pression1 013
DÉTAILS
Instructions d'entretien
Swamp Sunflowers require full sun to thrive and should be planted in an area that receives at least six hours of direct sunlight daily. They prefer moderate temperatures and high humidity. Water the plant regularly to keep the soil evenly moist, especially during dry periods. The plant can tolerate a range of temperatures but performs best in warm conditions.Récolte
Helianthus angustifolius, commonly known as the narrowleaf sunflower, is typically harvested in late summer to early fall when the flowers are fully open and the seeds have matured. To harvest, cut the flower heads off the plant using sharp scissors or pruning shears, leaving a few inches of stem attached. Allow the flower heads to dry in a well-ventilated area away from direct sunlight. Once dried, the seeds can be easily removed by rubbing the flower heads. Ensure the seeds are completely dry before storing them in a cool, dry place to prevent mold and spoilage.Sol
Helianthus angustifolius prefers loamy soil that is well-draining yet retains moisture. The soil should be rich in organic matter to support the plant's nutrient needs. Ensure the planting site has good drainage to prevent waterlogging, which can harm the plant.Engrais
Use a balanced fertilizer with an N-P-K ratio of 10-10-10. Fertilize the plant in early spring and again in mid-summer to support its growth and flowering. Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of flowers.Rempotage
If growing in a container, repot the Swamp Sunflower every 1-2 years to refresh the soil and provide more space for root growth. Choose a slightly larger pot with good drainage. Repot in early spring before the growing season begins.Propagation
Propagate Helianthus angustifolius through seeds or division. Sow seeds in early spring or divide mature plants in late spring or early summer. Ensure the divisions have several healthy shoots and roots before replanting.Taille
Prune the plant in late winter or early spring to remove dead or damaged stems and encourage new growth. Deadhead spent flowers during the blooming season to promote continuous flowering and prevent self-seeding.Toxicité
Helianthus angustifolius is not toxic to pets or humans. All parts of the plant are considered safe, making it a good choice for gardens frequented by children and animals.Supplémentaire
Swamp Sunflowers are excellent for attracting pollinators such as bees and butterflies to the garden. They can also be used in naturalized areas or rain gardens due to their preference for moist conditions.RÉVOLUTIONNEZ LE SOIN DE VOS PLANTES
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Moniteur d'usine
RESTE DANS VOTRE USINE
Mesure avec précision les paramètres de base de votre plante – humidité du sol, lumière, température et humidité – ainsi que des paramètres composés tels que le déficit de pression de vapeur (VPD) et les degrés-jours de croissance (GDD).
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Évalue les données de vos plantes, la météo actuelle, la saisonnalité et plus encore pour vous informer avec précision des besoins de vos plantes. L'application est également dotée de nombreuses fonctionnalités supplémentaires pour garantir l'épanouissement de vos plantes.
