Is autumn olive invasive?

Yes, it is highly invasive in many regions and can outcompete native vegetation.

Does it need a pollinator?

It is self fertile but produces more fruit when multiple plants are present.

Guide botanique

Japanese silverberry.

Elaeagnus umbellata

Prononciation el-ee-AG-nus um-bel-LAY-tuh

Aussi appelée Autumn Elaeagnus, Autumn Oleaster, Autumn Olive, Autumn berry, Japanese silverberry, Oleaster, Spreading Oleaster, autumn-olive

The Japanese silverberry is a hardy, deciduous shrub known for its silvery foliage and edible red berries. It is quite adaptable to various soil conditions and often used for erosion control or as a windbreak. You will find it produces fragrant, creamy flowers in the spring.

En un coup d'œil

Niveau d'entretien: Facile
Type de plante: Deciduous shrub
Lumière: Full sun
Lumière en intérieur: Soleil direct
Arrosage: Tous les 7 à 14 jours
Taille adulte: 12 to 18 feet
Croissance: Rapide
Rusticité: USDA 3 à 9
Floraison: Mid to late spring

Entretien

Plant this shrub in a spot with plenty of sun to encourage the best fruit production. Keep an eye out for signs of drought stress during the first year, though it is quite tough once established. It is a vigorous grower, so be prepared to manage its size if space is limited.

Arrosage: Water deeply during dry spells while the plant is young to help it settle in.
Engrais: A light application of balanced fertilizer in early spring is usually plenty.
Taille: Prune in late winter to maintain shape or remove dead wood.
Rempotage: If growing in a container, move to a larger pot every few years as it grows quickly.
Sol: Well drained, adaptable to poor soils
pH du sol: 6.0 to 7.5
Température: -28 à 35°C
Humidité: 40 à 80%
Résistance à la sécheresse: Élevée
Durée de vie: Perennial, typically 20 to 50 years
Parfum: Fort
Résistance aux chevreuils et lapins: Élevée

Signes qu'il faut rempoter

Roots growing out of drainage holes
Stunted growth despite regular feeding

Sécurité

Humains: The plant is not considered toxic to humans.
Enfants: The fruit is safe, but the plant can have sharp thorns that may scratch children.
Allergènes de contact: The foliage may cause mild skin irritation in sensitive individuals due to tiny scales.
Allergènes aéroportés: Pollen may trigger mild allergic reactions in sensitive individuals during the spring.
Comestibilité: The fruit is edible but can be astringent if not fully ripe.

Comment l'identifier

Silvery scales on leaf undersides
Small red berries with silver dots
Fragrant creamy white flowers
Alternate leaf arrangement
Thorny branches on mature plants

Hauteur: 3 à 5m
Envergure: 3 à 5m
Feuilles: green, silvery, deciduous
Fleurs: creamy white, yellow, 1 à 2cm
Fruits: red, silver-speckled, Late summer to early autumn

Problèmes courants

Verticillium wilt — A soilborne fungus that causes wilting and branch dieback.

La cultiver

Multiplication: seed, cuttings
Quand planter: spring, autumn
Hivernage: It is extremely hardy and requires no special protection during the winter months.
En pot: It is generally too large and aggressive for container gardening.

Seed

1. Collect ripe berries in autumn.
2. Clean the seeds from the pulp.
3. Cold stratify for 3 months.
4. Sow in pots in early spring.

Because it fixes nitrogen, it can act as a nurse plant for nearby shrubs in poor soil.

Bonnes associations

Eastern red cedar — They share similar drought tolerance and thrive in open, sunny conditions.

Espèces similaires

Elaeagnus angustifolia — It is a related species with similar invasive tendencies and silvery foliage.

Science

Famille: Elaeagnaceae
Genre: Elaeagnus
Ordre: Rosales
Classe: Magnoliopsida
Région d'origine: Eastern Asia
Préservation: It is considered an invasive species in many parts of North America and should be planted with caution.

It thrives in disturbed areas and open fields, often forming dense thickets that shade out other plants.

Intérêt pour la faune: nectar source, provides cover for birds, fruit source for birds
Pollinisateurs: abeilles, papillons
Utilisations: wildlife habitat, hedging, erosion control, edible fruit

Au fil des saisons

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Floraison

Fructification

Feuillage

Repères écologiques

Salinité: 4/9
Réaction du sol: 5/9
Lumière: 7/9
Température: 5/9
Humidité: 3/9
Nutriments: 2/9

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Is autumn olive invasive?: Yes, it is highly invasive in many regions and can outcompete native vegetation.
Does it need a pollinator?: It is self fertile but produces more fruit when multiple plants are present.

D'où vient le nom

The genus name comes from the Greek words for olive and chaste tree, while the specific epithet refers to the umbel-like clusters of flowers.

Bon à savoir

The fruit contains high levels of lycopene.
It was historically planted for erosion control and wildlife food.
The leaves have a distinct silvery underside.
It can tolerate very poor, dry soils.

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.

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.