Trumpet gentian.

En un coup d'œil

Niveau d'entretien

Moyenne

Type de plante

Perennial

Lumière

Partial shade

Lumière en intérieur

Lumière vive indirecte

Arrosage

Tous les 3 à 7 jours

Taille adulte

4 to 6 inches

Croissance

Lente

Rusticité

USDA 3 à 7

Floraison

Late spring to early summer

Entretien

Keep the soil consistently cool and moist, as this plant dislikes drying out completely. Watch for yellowing leaves, which often signal that the soil is too warm or poorly drained. It performs best when planted in a spot with protection from the harsh afternoon sun.

Arrosage

Keep the soil evenly moist but never waterlogged.

Engrais

Apply a balanced, slow release fertilizer during the spring growing season.

Taille

Remove spent flowers after blooming to keep the plant tidy.

Rempotage

Repot only when the plant becomes rootbound, as it prefers to stay undisturbed.

Sol

Humus rich, well draining, slightly acidic

pH du sol

5.5 to 6.5

Température

-25 à 25°C

Humidité

50 à 70%

Résistance à la sécheresse

Faible

Durée de vie

Perennial, typically 5 to 10 years

Résistance aux chevreuils et lapins

Moyenne

Sécurité

Humains

All parts of the plant are considered mildly toxic if ingested.

Enfants

Keep this plant away from small children as ingestion of any part can lead to stomach discomfort.

Allergènes de contact

The sap may cause mild skin irritation in sensitive individuals.

Allergènes aéroportés

There are no known significant respiratory allergens associated with this plant.

Comestibilité

This plant is not intended for consumption and may cause digestive upset.

Comment l'identifier

• Large, trumpet shaped deep blue flowers
• Low growing, mat forming habit
• Glossy, dark green basal leaves
• Flowers feature green spotted throats

Hauteur

0,05 à 0,1m

Envergure

0,15 à 0,3m

Feuilles

dark green, evergreen

Fleurs

intense blue, 4 à 6cm

Problèmes courants

• Slugs and snails — These pests can chew holes in the foliage and flowers during damp weather.

La cultiver

Multiplication

division, seed

Quand planter

spring, autumn

Hivernage

Ensure the plant is not sitting in waterlogged soil during winter, as this can cause crown rot. A light mulch of grit can help protect the base from excess moisture.

En pot

It grows very well in shallow alpine troughs or pots that provide excellent drainage.

Plant these in groups to create a striking carpet of blue against grey rock features.

Bonnes associations

• Aster alpinus — They share similar environmental needs and look beautiful together in a rock garden.
• Edelweiss — This classic alpine companion thrives in the same rocky, well-draining conditions.

Espèces similaires

• Gentiana asclepiadea — It is a larger, shade-tolerant relative that also features beautiful blue flowers.

Science

Famille

Gentianaceae

Genre

Gentiana

Ordre

Gentianales

Classe

Magnoliopsida

Région d'origine

Mountainous regions of central and southern Europe.

Préservation

It is not currently endangered but should never be collected from the wild in its native alpine habitats.

It thrives in high altitude meadows and rocky slopes where it benefits from cool temperatures and consistent moisture.

Intérêt pour la faune

nectar source

Pollinisateurs

abeilles, papillons

Utilisations

rock gardens, alpine troughs, border edging

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Why won't my gentian bloom?

It often requires a cold winter dormancy period and plenty of sunlight to set buds.

Does it need special soil?

It prefers cool, moist, well-draining soil that is slightly acidic and rich in organic matter.

D'où vient le nom

The genus is named after Gentius, an ancient king of Illyria who supposedly discovered the medicinal properties of the plant. The species name acaulis means stemless, referring to the flowers sitting directly atop the foliage.

Bon à savoir

• The flowers close up during cloudy weather or at night.
• It is a classic symbol of the European Alps.
• The intense blue color is a result of a specific pigment called gentianin.

Aussi dans

• Plantes d'ombre