Weeping forsythia.

En un coup d'œil

Niveau d'entretien

Facile

Type de plante

Deciduous shrub

Lumière

Full sun to partial shade

Lumière en intérieur

Soleil direct

Arrosage

Tous les 7 à 14 jours

Taille adulte

8 to 10 feet

Croissance

Rapide

Rusticité

USDA 5 à 8

Floraison

Early to mid spring

Entretien

Plant this shrub in a sunny spot to ensure the best flower production. Prune right after the flowers fade to keep the shape tidy and encourage new growth for next year. Watch for wilting leaves which might indicate the soil is too dry during the heat of summer.

Arrosage

Water deeply once a week during dry spells to keep the roots hydrated.

Engrais

Apply a balanced fertilizer once in early spring before the new growth starts.

Taille

Trim back the branches immediately after the spring flowering period ends.

Rempotage

If growing in a container, move to a larger pot every few years when it becomes root bound.

Sol

Well drained loamy soil

pH du sol

6.0 to 7.5

Température

-25 à 35°C

Humidité

40 à 70%

Résistance à la sécheresse

Moyenne

Durée de vie

Perennial, typically 20 to 30 years

Parfum

Léger

Résistance aux chevreuils et lapins

Moyenne

Sécurité

Humains

The plant is generally considered non toxic but should not be consumed.

Enfants

The branches are sturdy and may pose a minor scratching risk if children play near them.

Allergènes de contact

Handling the stems may cause minor skin irritation in sensitive individuals.

Allergènes aéroportés

Pollen is generally not a significant allergen.

Comestibilité

This plant is not considered edible and ingestion may cause mild stomach upset.

Comment l'identifier

• Arching and drooping branch habit
• Bright yellow four petaled flowers
• Opposite simple or trifoliate leaves
• Lenticels visible on woody stems

Hauteur

2 à 3m

Envergure

2 à 3m

Feuilles

green, deciduous

Fleurs

yellow, 2 à 3cm

Fruits

brown, Autumn

Problèmes courants

• Forsythia gall — Causes round, woody growths on the stems that can weaken the plant.
• Leaf spot — Fungal infection causing dark spots on foliage during wet weather.

La cultiver

Multiplication

cuttings, layering

Quand planter

spring, autumn

Hivernage

No special winter protection is needed as it is quite hardy. Mulch around the base to keep roots cool and moist.

En pot

It can be grown in large containers, but it prefers being in the ground to reach its full potential.

Plant spring bulbs around the base to take advantage of the early season light before the shrub leaves out fully.

Bonnes associations

• Jonquille — They bloom at the same time and create a beautiful yellow color display.
• Muscari — The blue flowers provide a nice color contrast to the yellow Forsythia blooms.

Espèces similaires

• Forsythia x intermedia — It is a common hybrid with a more upright growth habit.

Science

Famille

Oleaceae

Genre

Forsythia

Ordre

Lamiales

Classe

Magnoliopsida

Région d'origine

China

Préservation

This species is not of conservation concern.

It thrives in open, sunny slopes where its arching branches can easily root when they touch the ground.

Intérêt pour la faune

early season nectar source

Pollinisateurs

abeilles, papillons

Utilisations

ornamental shrub, erosion control, bank cover

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

When should I prune my Forsythia?

Prune immediately after the flowers fade to ensure you do not cut off next year's buds.

Why is my Forsythia not blooming?

It may have been pruned too late in the season or it is not receiving enough sunlight.

D'où vient le nom

The genus is named after William Forsyth, a Scottish botanist and royal gardener. The species name suspensa describes the plant's pendulous or hanging branches.

Bon à savoir

• It is one of the first shrubs to bloom in the spring.
• The name suspensa refers to its drooping, weeping habit.
• It is a traditional plant in many Asian gardens.