European Ash.

En un coup d'œil

Niveau d'entretien

Facile

Type de plante

Deciduous tree

Lumière

Full sun to partial shade

Lumière en intérieur

Soleil direct

Arrosage

Tous les 7 à 14 jours

Taille adulte

30 to 40 meters

Croissance

Rapide

Rusticité

USDA 4 à 8

Floraison

Early to mid spring

Entretien

Plant this tree in a spot with plenty of room for its roots to spread. Keep an eye out for signs of ash dieback, which causes wilting leaves and lesions on the branches. Regular monitoring helps you catch any health issues early.

Arrosage

Young trees need consistent moisture until they are well established in the landscape.

Engrais

Apply a balanced slow release fertilizer in early spring if the soil is poor.

Taille

Prune only to remove dead or diseased wood during the dormant winter period.

Rempotage

This tree is best suited for the ground, but container specimens need larger pots every few years.

Sol

Deep, fertile, moist, well-draining soil

pH du sol

Neutral to alkaline

Température

-30 à 35°C

Humidité

40 à 70%

Résistance à la sécheresse

Moyenne

Durée de vie

Perennial, typically 100 to 200 years.

Résistance aux chevreuils et lapins

Moyenne

Sécurité

Humains

This tree is not considered toxic to humans.

Enfants

The winged seeds, known as keys, are safe for children to handle but should not be ingested.

Allergènes de contact

The bark or leaves may cause mild skin irritation in sensitive individuals.

Allergènes aéroportés

The windborne pollen is a significant allergen for many people during the spring.

Comestibilité

The seeds are sometimes pickled, but they are not a standard food source and should be treated with caution.

Comment l'identifier

• Large compound leaves with serrated leaflets
• Distinctive black, velvety winter buds
• Grey, smooth bark on young trees
• Winged seeds known as samaras
• Opposite branching pattern on twigs

Hauteur

20 à 35m

Envergure

10 à 20m

Feuilles

green, deciduous

Fleurs

purple, green, 0,5 à 1cm

Fruits

brown, Autumn

Problèmes courants

• Ash dieback — A fungal pathogen that causes leaf loss and crown dieback.

La cultiver

Multiplication

seed

Quand planter

spring, autumn

Hivernage

No special care is needed as it is fully hardy in its native range.

En pot

This tree is far too large for container cultivation.

Plant in areas where the large canopy will not shade out smaller sun loving perennials.

Bonnes associations

• Noisetier commun — They often grow together in natural woodland understories.
• English oak — These species frequently share the same woodland canopy.

Espèces similaires

• Fraxinus angustifolia — It has a similar growth habit but with narrower leaflets.

Science

Famille

Oleaceae

Genre

Fraxinus

Ordre

Lamiales

Classe

Magnoliopsida

Région d'origine

Europe and southwestern Asia.

Préservation

This species is currently under severe threat across its range due to ash dieback disease.

It thrives in moist, fertile soils and is a pioneer species in woodland succession.

Intérêt pour la faune

larval host plant, provides nesting sites

Pollinisateurs

abeilles, coléoptères

Utilisations

timber production, ornamental shade tree, ecological restoration

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Is it safe to plant near a house?

No, the roots are vigorous and can damage foundations or drainage systems.

How fast does it grow?

It is a fast growing tree when young, often adding significant height each year.

D'où vient le nom

The name excelsior means higher or loftier in Latin, referring to its impressive stature.

Bon à savoir

• Ash wood is highly flexible and shock resistant, making it perfect for tool handles.
• In Norse mythology, the world tree Yggdrasil is often identified as an ash.
• The leaves of the ash tree are among the last to emerge in spring and the first to fall in autumn.