Pocket BotanistGuide botanique
Miss Willmott's Ghost.
Eryngium giganteum
Prononciation eh-RIN-jee-um jy-GAN-tee-um
Aussi appelée Miss Willmot's-ghost, Miss Willmott's Ghost, Tall Eryngo, giant sea holly, giant sea-holly
This striking biennial brings a silvery, architectural look to your garden. It is famous for the way its bracts seem to glow in the moonlight. You will love how it adds a touch of mystery to any sunny border.
En un coup d'œil
- Niveau d'entretien
- Facile
- Type de plante
- Biennial
- Lumière
- Full sun
- Lumière en intérieur
- Soleil direct
- Arrosage
- Tous les 7 à 14 jours
- Taille adulte
- 3 to 4 feet
- Croissance
- Moyenne
- Rusticité
- USDA 4 à 8
- Floraison
- Early to late summer
Entretien
Plant this in a spot with plenty of sun and well draining soil. Watch for wilting if the soil stays too dry, but avoid overwatering to prevent root rot. It often self seeds, so let the flowers dry if you want more plants next year.
- Arrosage
- Water deeply once the top inch of soil feels dry to the touch.
- Engrais
- A light application of balanced compost in early spring is plenty.
- Taille
- Cut back the dead flower stalks in late autumn or early spring.
- Rempotage
- Since it is a biennial, you will likely only need to move it once before it finishes its life cycle.
- Sol
- Sandy or gritty, well draining soil
- pH du sol
- Neutral to slightly alkaline
- Température
- -20 à 30°C
- Humidité
- 40 à 60%
- Résistance à la sécheresse
- Élevée
- Durée de vie
- Short lived perennial, typically 2 to 3 years.
- Résistance aux chevreuils et lapins
- Élevée
Signes qu'il faut rempoter
- Roots growing out of the drainage holes
- Stunted growth during the active season
Sécurité
- Humains
- The plant contains compounds that can cause mild skin irritation upon contact.
- Enfants
- The sharp, spiny foliage poses a physical injury risk to small children if handled.
- Allergènes de contact
- Handling the sharp, spiny leaves can cause mechanical skin irritation.
- Allergènes aéroportés
- There are no significant reports of airborne allergens for this species.
- Comestibilité
- This plant is not considered edible and may cause stomach upset if ingested.
Comment l'identifier
- Silvery heart shaped bracts
- Spiky, thistle like flower heads
- Sturdy, branched stems
- Toothed, grey green basal leaves
- Hauteur
- 0,6 à 1,2m
- Envergure
- 0,3 à 0,45m
- Feuilles
- green, silver, deciduous
- Fleurs
- silver, blue, 3 à 6cm
- Fruits
- brown, Autumn
Problèmes courants
- Root rot — Occurs when the soil remains too wet for extended periods.
- Slugs — These pests may feed on young foliage in early spring.
La cultiver
- Multiplication
- seed
- Quand planter
- spring, autumn
- Hivernage
- Leave the dried flower heads standing for winter interest and to allow for natural self seeding. Cut back the dead foliage in early spring before new growth appears.
- En pot
- It can grow in large containers, but the deep taproot prefers the ground.
Seed Sowing
- Collect seeds in late autumn once the heads turn brown.
- Sow seeds directly into the garden in a sunny spot.
- Ensure the soil is well drained to prevent winter rot.
Plant in groups of three or five to create a dramatic architectural statement in the border.
Bonnes associations
- Lavande d'Angleterre — They share similar requirements for sun and well drained soil.
- Ice Plant — The succulent foliage contrasts beautifully with the spiky flowers.
- Perovskia atriplicifolia — Both plants provide a airy, silver aesthetic to the garden.
Espèces similaires
- Eryngium maritimum — It is a coastal relative with similar blue, spiky flower heads.
- Panicaut maritime — It features smaller, more numerous blue flowers.
Science
- Famille
- Apiaceae
- Genre
- Eryngium
- Ordre
- Apiales
- Classe
- Magnoliopsida
- Région d'origine
- Caucasus region
- Préservation
- This species is not of conservation concern and is widely cultivated.
It thrives in rocky, well drained soils where its deep taproot can access moisture.
- Intérêt pour la faune
- nectar source, winter seed source for birds
- Pollinisateurs
- abeilles, papillons, papillons de nuit
- Utilisations
- ornamental border, dried flower arrangements, pollinator garden
Au fil des saisons
Repères écologiques
- Salinité
- 2/9
- Réaction du sol
- 6/9
- Lumière
- 8/9
- Température
- 5/9
- Humidité
- 3/9
- Nutriments
- 3/9
Taxonomie vérifiée avec le GBIF.
Ce qu'on demande souvent
- Is this plant a perennial?
- It is technically a short lived perennial that often dies after setting seed.
- Does it need full sun?
- Yes, it thrives in full sun to perform its best.
D'où vient le nom
The genus name comes from the Greek word for a type of thistle, while the species name refers to its large size.
Bon à savoir
- It is a short lived perennial that often acts like a biennial.
- The plant is famous for self seeding freely in the garden.
- It was named after Ellen Willmott, who allegedly scattered seeds in gardens she visited.
Aussi dans
Ta plante a mauvaise mine ?
Cette page est un guide général. Pocket Botanist diagnostique les problèmes directement à partir d'une photo de ta plante, adapte l'arrosage à sa luminosité et te prévient quand il faut t'en occuper.
Ce guide a été généré par IA et vérifié avec la taxonomie du GBIF. Il s'agit d'informations générales, et non de conseils horticoles ou vétérinaires. Découvre comment nous concevons ces guides.