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Guide botanique

Eastern Redbud.

Cercis canadensis

Prononciation SUR-sis kan-uh-DEN-sis

Aussi appelée Canada redbud, Eastern Redbud, Judas Tree, Judastree, Redbud

eastern redbud
Photo de Michael J. Papay (CC BY) via iNaturalist

The Eastern Redbud is a charming understory tree that puts on a spectacular show in early spring. It features heart shaped leaves and vibrant pink to purple flowers that bloom directly on the branches. This native tree is a favorite for adding seasonal color to woodland gardens.

En un coup d'œil

Care level
Easy
Plant type
Deciduous tree
Light
Full sun to partial shade
Indoor light
bright-indirect
Water
Every 7 to 14 days
Mature size
9 to 12 meters
Growth rate
medium
Hardiness
USDA 4 to 9
Bloom time
Early to mid spring

Entretien

Plant in a spot with well draining soil and protection from harsh afternoon sun. Keep an eye out for leaf spots or cankers during humid weather. Prune only after flowering to maintain a nice shape.

Watering
Water deeply during dry spells to keep the soil consistently moist but not waterlogged.
Feeding
Apply a balanced slow release fertilizer in early spring before new growth appears.
Pruning
Prune immediately after the flowers fade to remove dead wood and improve structure.
Repotting
Repot only if necessary when the tree is young, as they prefer to stay in the ground.
Soil
Loamy, moist, well draining
Soil pH
6.0 to 8.0
Temperature
-28 to 35°C
Humidity
40 to 60%
Drought tolerance
moderate
Lifespan
Perennial, typically 20 to 50 years.
Deer and rabbits
moderate

Signes qu'il faut rempoter

  • Roots growing out of the drainage holes.
  • Water running straight through the pot without soaking in.
  • Stunted growth despite proper care.

Sécurité

People
The plant is not considered toxic to humans.
Pets
This plant is not known to be toxic to cats or dogs.
Children
The seed pods can be a choking hazard for small children if ingested.
Contact allergens
There are no known significant skin irritants associated with this tree.
Airborne allergens
The pollen is generally not considered a major allergen for most people.
Edibility
While the flowers are edible, avoid consuming plant parts if you are unsure of identification or if the tree has been treated with chemicals.

Comment l'identifier

  • Heart shaped leaves
  • Pink flowers on bare branches
  • Zigzagging branch pattern
  • Small reddish brown seed pods
Height
6 to 9m
Spread
5 to 8m
Leaves
green, yellow, deciduous
Flowers
pink, purple, magenta, 1 to 2cm
Fruit
brown, Late summer to autumn

Problèmes courants

  • Botryosphaeria canker Fungal infection that causes sunken areas on branches and can lead to dieback.
  • Leafhoppers Small insects that suck sap and can cause leaf yellowing or stippling.
  • Verticillium wilt Soilborne fungus that causes wilting and branch death.

La cultiver

Propagation
seed, cuttings
When to plant
spring, autumn
Overwintering
No special winter care is needed as it is fully hardy in its native range. You can mulch around the base to protect the roots from extreme temperature swings.
In containers
It can be grown in large containers for a few years, but it prefers being in the ground.

Seed

  1. Scarify the hard seed coat with sandpaper.
  2. Soak seeds in warm water for 24 hours.
  3. Cold stratify in the refrigerator for 8 weeks.
  4. Plant in moist soil and keep warm until germination.

Planting spring ephemerals beneath the tree takes advantage of the light before the canopy fully leafs out.

Bonnes associations

  • Serviceberry They share similar light and moisture requirements in woodland settings.
  • Wild Ginger It makes a great groundcover beneath the canopy of the redbud.
  • Columbine These perennials thrive in the same dappled shade conditions.

À éloigner de

  • Black Walnut The juglone produced by walnut roots can inhibit the growth of many trees.

Espèces similaires

  • Chinese Redbud It has a similar growth habit but features more intense flower clusters.
  • Western Redbud It is a close relative adapted to the drier conditions of the western United States.

Science

Family
Fabaceae
Genus
Cercis
Order
Fabales
Class
Magnoliopsida
Native range
Eastern and central North America.
Conservation
It is not currently of conservation concern.

This understory tree thrives in the dappled light of forest edges and along stream banks.

Value to wildlife
early nectar source, nesting habitat
Pollinators
bees, butterflies
Uses
ornamental specimen, pollinator garden, woodland edge planting

Au fil des saisons

JFMAMJJASOND
Flowering
Fruiting
Foliage

Repères écologiques

Salinity
1/9
Soil reaction
6/9
Light
6/9
Temperature
5/9
Moisture
5/9
Nutrients
5/9

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

How fast does it grow?
It is a moderate grower, typically adding 1 to 2 feet per year.
Does it need full sun?
It prefers full sun to partial shade, especially in hotter climates.

D'où vient le nom

The genus name Cercis comes from the Greek word kerkis, meaning weaver's shuttle, referring to the pod shape. The species name canadensis refers to its range in North America.

Bon à savoir

  • The flowers are technically edible and have a slightly sweet, pea like flavor.
  • Native Americans used the bark to treat various ailments.
  • It is the state tree of Oklahoma.
  • The heart shaped leaves turn a lovely yellow in the fall.

Ton eastern redbud 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.