Orange hawkweed.

En un coup d'œil

Niveau d'entretien

Facile

Type de plante

Perennial herb

Lumière

Full sun

Lumière en intérieur

Soleil direct

Arrosage

Tous les 5 à 10 jours

Taille adulte

12 to 18 inches

Croissance

Rapide

Rusticité

USDA 3 à 8

Floraison

Early to late summer

Entretien

Plant this in a spot with plenty of sun to keep those colors bright. Watch for wilting if the soil dries out too much, and trim back spent flowers to encourage more blooms. It is a tough plant that handles poor soil quite well.

Arrosage

Keep the soil consistently moist but never soggy.

Engrais

Apply a balanced liquid fertilizer during the active growing season.

Taille

Deadhead spent flowers regularly to keep the plant tidy and promote new growth.

Rempotage

Repot when the plant becomes root bound or starts to crowd its container.

Sol

Well draining, sandy or rocky soil

pH du sol

5.5 to 7.0

Température

-30 à 30°C

Humidité

40 à 70%

Sécurité

Humains

The plant contains sesquiterpene lactones which can cause skin irritation in sensitive individuals.

Enfants

The plant is not toxic but its hairy texture can be irritating to a child's skin if handled frequently.

Allergènes de contact

Handling the foliage may cause contact dermatitis due to the presence of fine hairs and sap.

Allergènes aéroportés

The pollen can trigger mild allergic reactions in sensitive individuals during the peak bloom period.

Comestibilité

This plant is not considered edible and may cause digestive upset if consumed.

Comment l'identifier

• Bright orange flower heads
• Hairy, lance shaped basal leaves
• Stems covered in black hairs
• Milky sap inside stems
• Spreads via stolons

Hauteur

0,2 à 0,4m

Envergure

0,3 à 0,6m

Feuilles

green, deciduous

Fleurs

orange, red, 1 à 2cm

Fruits

white, late summer

Problèmes courants

• Rust — Fungal infection causing orange pustules on the undersides of leaves.

La cultiver

Multiplication

division, seed, stolons

Quand planter

spring, autumn

Because this plant is so aggressive, it is best grown in containers or isolated areas to prevent it from choking out your other garden favorites.

Bonnes associations

• Festuca ovina — It shares similar soil requirements and thrives in the same dry, sunny conditions.

Espèces similaires

• Pilosella officinarum — It is a closely related species with similar growth habits but yellow flowers.

Science

Famille

Asteraceae

Genre

Pilosella

Ordre

Asterales

Classe

Magnoliopsida

Région d'origine

Central and southern Europe.

Préservation

It is considered an invasive weed in many regions outside its native range and should be managed carefully.

It thrives in nutrient poor, acidic soils where it uses its stolons to rapidly colonize open spaces.

Intérêt pour la faune

nectar source

Pollinisateurs

abeilles, papillons

Utilisations

ground cover, rock garden plant, meadow planting

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Is this plant invasive?

Yes, it is highly invasive in many parts of North America and can quickly take over lawns and pastures.

How do I stop it from spreading?

You must remove the entire root system and stolons, as any remaining pieces can sprout new plants.

D'où vient le nom

The genus name Pilosella comes from the Latin word for hairy, referring to the plant's fuzzy leaves, while the species name aurantiaca refers to its orange flower color.

Bon à savoir

• It is commonly known as orange hawkweed.
• The plant produces seeds without fertilization, a process called apomixis.
• It can outcompete native grasses in poor soils.
• The flowers close up during the night or on cloudy days.