It is technically a biennial, though it often self-seeds so freely that it appears perennial.

Can I grow it in shade?

Yes, it thrives in partial shade and actually prefers it in warmer climates.

Guide botanique

Honesty.

Lunaria annua

Prononciation loo-NAIR-ee-uh AN-yoo-uh

Aussi appelée Annual Honesty, Honesty

Honesty is a charming biennial that brings a touch of magic to the garden with its purple flowers and unique papery seed pods. It is a favorite for dried flower arrangements because those translucent pods look just like silver coins. You will love how easily it self seeds, ensuring you have new plants popping up every year.

En un coup d'œil

Niveau d'entretien: Facile
Type de plante: Biennial
Lumière: Partial shade to full sun
Lumière en intérieur: Lumière vive indirecte
Arrosage: Tous les 3 à 7 jours
Taille adulte: 3 feet
Croissance: Moyenne
Rusticité: USDA 4 à 8
Floraison: Late spring to early summer

Entretien

Keep the soil consistently moist but never soggy to help these plants thrive. Watch for wilting leaves which signal a need for water, and remove spent flower stalks to encourage seed pod development. If the plant looks crowded, thin out the seedlings to give them room to grow.

Arrosage: Water whenever the top inch of soil feels dry to the touch.
Engrais: Apply a balanced liquid fertilizer once a month during the growing season.
Taille: Snip off faded flower spikes to keep the plant tidy and prevent unwanted spread.
Rempotage: Since these are biennials, you will likely only need to repot them if you are starting them in containers before moving them outdoors.
Sol: Moist, well-draining soil
pH du sol: Neutral to slightly alkaline
Température: -20 à 30°C
Humidité: 40 à 70%
Résistance à la sécheresse: Moyenne
Durée de vie: Biennial, typically 2 years.
Parfum: Léger
Résistance aux chevreuils et lapins: Moyenne

Signes qu'il faut rempoter

Roots growing out of the drainage holes.
Water draining through the pot too quickly.
The plant looks stunted despite regular care.

Sécurité

Humains: The plant is generally considered non-toxic, but ingestion is not recommended.
Enfants: The dried seed pods can be a choking hazard if left within reach of small children.
Allergènes de contact: Handling the foliage may cause mild skin irritation in sensitive individuals.
Allergènes aéroportés: The pollen can trigger mild hay fever symptoms in some people during the flowering season.
Comestibilité: While the young leaves are sometimes eaten, they are not a common food source and should be treated with caution.

Comment l'identifier

Heart shaped coarsely toothed leaves
Clusters of fragrant purple flowers
Flat papery translucent seed pods
Biennial growth habit

Hauteur: 0,6 à 0,9m
Envergure: 0,3 à 0,45m
Feuilles: green, deciduous
Fleurs: purple, white, 2 à 4cm
Fruits: silvery, translucent, Late summer

Problèmes courants

Cabbage white butterfly — The larvae feed heavily on the foliage of this plant.
Powdery mildew — A fungal issue that creates white dusty patches on leaves during humid weather.

La cultiver

Multiplication: seed
Quand planter: spring, autumn
Hivernage: In colder regions, provide a light layer of mulch to protect the crown during the first winter. Ensure the soil remains well-drained to prevent root rot.
En pot: It grows well in large containers, provided they have excellent drainage and are at least 30 centimeters deep.

Seed Sowing

1. Collect dry pods in late summer.
2. Remove the seeds from the papery casing.
3. Sow seeds directly into the garden in autumn or spring.
4. Cover lightly with soil and keep moist until germination.

Plant these near other shade-loving biennials to create a rotating display of color throughout the garden.

Bonnes associations

Myosotis des bois — They share similar light and moisture requirements in woodland settings.
Ancolie — These plants provide a beautiful contrast in flower shape and bloom time.

Espèces similaires

Perennial honesty — This is a true perennial version of the more common biennial money plant.

Science

Famille: Brassicaceae
Genre: Lunaria
Ordre: Brassicales
Classe: Magnoliopsida
Région d'origine: Central and southern Europe.
Préservation: This plant is not of conservation concern and is considered a naturalized species in many regions.

It grows in woodland edges and disturbed soils where it can easily spread via wind-dispersed seeds.

Intérêt pour la faune: nectar source, larval host plant
Pollinisateurs: abeilles, papillons
Utilisations: ornamental garden plant, dried flower arrangements

Au fil des saisons

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Floraison

Fructification

Feuillage

Repères écologiques

Salinité: 1/9
Réaction du sol: 6/9
Lumière: 5/9
Température: 5/9
Humidité: 5/9
Nutriments: 6/9

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Is it a perennial?: It is technically a biennial, though it often self-seeds so freely that it appears perennial.
Can I grow it in shade?: Yes, it thrives in partial shade and actually prefers it in warmer climates.

D'où vient le nom

The scientific name Lunaria refers to the moon-like appearance of the translucent seed pods, while annua is a bit of a misnomer as it is a biennial.

Bon à savoir

The name Lunaria comes from the Latin word for moon, referring to the shape of the seed pods.
It is a biennial, meaning it grows leaves in the first year and flowers in the second.
The silvery membrane of the seed pod is actually the septum that remains after the outer valves fall off.
It is a traditional cottage garden favorite.

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.

Télécharger l'appli

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.