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Dahlia pinnata

TAXONOMIE

FamilleAsteraceae

GenreDahlia

Zone8

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Dahlia pinnata, commonly known as the garden dahlia, is a tuberous geophyte native to Mexico. It belongs to the Asteraceae family and is known for its vibrant, large flowers that come in a variety of colors. Dahlias are popular ornamental plants and are often used in gardens and floral arrangements. They have a dormancy period during the winter months when the tubers are stored until the next growing season.

AUSSI CONNU SOUS LE NOM

Coreopsis Crassifolia

Bidens variabilis

Coreopsis georgina

Dahlia

Dahlia astrantiiflora

Dahlia mexicana

Dahlia nana

Dahlia pinnata var. nana

Dahlia pinnata var. pinnata

Dahlia pinnata var. variabilis

Dahlia purpurea

Dahlia purpurea var. purpurea

Dahlia pusilla

Dahlia rosea

Dahlia royleana

Dahlia sambucifolia

Dahlia sphondyliifolia

Dahlia superflua

Dahlia variabilis

Georgia superflua

Georgia superflua var. flavescens

Georgia superflua var. lilacina

Georgia superflua var. pallida

Georgia superflua var. purpurea

Georgia superflua var. rubra

Georgia superflua var. superflua

Georgia variabilis

Georgina astrantiiflora

Georgina purpurea

Georgina rosea

Georgina superflua

Georgina superflua var. flavescens

Georgina superflua var. lilacina

Georgina superflua var. pallida

Georgina superflua var. purpurea

Georgina superflua var. rubra

Georgina variabilis

Georgina variabilis var. lilacina

Georgina variabilis var. pallida

Pinnate dahlia

APERÇU

VPDCalculer

EauHumide

SolLimoneux

LumièreLumière directe (6 Heures)

Température20° C

Humidité60

GDD1 800

Dormance3 Mois

pH6,5

Pression1 013

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Demander

DÉTAILS

Instructions d'entretien

Dahlias require bright, direct sunlight for optimal growth and should be planted in a location that receives at least six hours of sunlight daily. They thrive in moderate temperatures and prefer a humid environment. Regular watering is essential, but the soil should be allowed to dry out partially between waterings to prevent root rot. Dahlias are best grown outdoors in a garden setting.

Récolte

Dahlia pinnata tubers are typically harvested in the fall, after the first frost has blackened the foliage. To harvest, carefully dig around the plant to avoid damaging the tubers, then lift the clump out of the ground. Shake off excess soil and allow the tubers to dry for a few days in a cool, dry place. Once dry, store the tubers in a cool, dark, and frost-free location until ready to replant in the spring. Ensure that the storage area has good air circulation to prevent mold and rot.

Sol

Dahlias prefer well-draining loamy soil that is rich in organic matter. The soil should be kept moderately moist but not waterlogged. Good drainage is crucial to prevent tuber rot. Adding compost or well-rotted manure can improve soil fertility and structure.

Engrais

Dahlias benefit from a balanced fertilizer with a nutrient composition of 5-10-10 (N-P-K). Fertilize the plants every 4-6 weeks during the growing season to promote healthy growth and abundant flowering. Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of flowers.

Rempotage

Dahlias are typically grown from tubers rather than being repotted. However, if you need to move them, do so in early spring before new growth begins. Carefully dig up the tubers, divide them if necessary, and replant them in a new location with fresh soil.

Propagation

Dahlias can be propagated by dividing tubers or from cuttings. The best time to divide tubers is in early spring before planting. Each division should have at least one eye (growth bud). Cuttings can be taken from new shoots in spring and rooted in a well-draining potting mix.

Taille

Pruning is essential for dahlias to encourage bushier growth and more flowers. Pinch out the growing tips when the plants are about 12 inches tall to promote branching. Deadhead spent flowers regularly to encourage continuous blooming throughout the season.

Toxicité

Dahlias are generally non-toxic to pets and humans. However, some individuals may experience skin irritation from handling the plant. It is always advisable to wear gloves when working with dahlias to avoid any potential allergic reactions.

Supplémentaire

To ensure healthy growth, stake tall dahlia varieties to provide support and prevent them from toppling over. Mulching around the base of the plants can help retain soil moisture and suppress weeds. In colder climates, dig up the tubers after the first frost and store them in a cool, dry place until the next planting season.

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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.