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Guide botanique

Eastern hemlock.

Tsuga canadensis

Prononciation SOO-guh kan-uh-DEN-sis

Aussi appelée Black Hemlock, Canada Hemlock, Canadian Hemlock, Common Hemlock, Eastern Hemlock, Eastern Hemlock-Spruce, Hemlock, Hemlock Spruce

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Eastern hemlock
Photo de James Weaver (CC BY) via gbif

The Eastern hemlock is a graceful, long-lived conifer that thrives in cool, moist environments. It features a soft, feathery appearance that makes it a beautiful addition to larger landscapes. You will love how its delicate needles add texture to your garden.

Une autre photo de Eastern hemlock
Photo de Lara Gibson (CC BY) via iNaturalist

En un coup d'œil

Niveau d'entretien
Moyenne
Type de plante
Coniferous evergreen tree
Lumière
Partial shade to full shade
Lumière en intérieur
Lumière vive indirecte
Arrosage
Tous les 7 à 14 jours
Taille adulte
60 to 80 feet
Croissance
Lente
Rusticité
USDA 3 à 7
Floraison
Mid spring

Entretien

Keep the soil consistently moist and protect the tree from harsh, drying winds. Watch for signs of stress like needle drop or yellowing, which often indicate improper moisture levels. It prefers cooler climates and struggles in intense summer heat.

Arrosage
Keep the soil evenly moist but never waterlogged.
Engrais
Apply a slow-release, acid-loving fertilizer in early spring.
Taille
Prune in late winter or early spring to remove dead or damaged branches.
Rempotage
Repot only if necessary, as these trees prefer to remain undisturbed.
Sol
Moist, well-drained, acidic soil
pH du sol
Acidic
Température
-35 à 30°C
Humidité
50 à 90%
Résistance à la sécheresse
Faible
Durée de vie
Perennial, can live for several hundred years
Résistance aux chevreuils et lapins
Faible

Signes qu'il faut rempoter

  • Roots circling the bottom of the pot
  • Water draining through too quickly
  • Stunted growth despite proper care

Sécurité

Humains
The plant is not considered toxic, but the needles can be a mechanical irritant if ingested.
Enfants
The small cones are a potential choking hazard for small children.
Allergènes de contact
The needles are slightly sharp and may cause minor skin irritation upon handling.
Allergènes aéroportés
Pollen can be a mild trigger for those with sensitive respiratory systems during the spring.
Comestibilité
The needles are sometimes used for tea, but ensure correct identification as some yew species are highly toxic.

Comment l'identifier

  • Short, flat, dark green needles
  • Two white bands on needle undersides
  • Small, woody, pendulous cones
  • Drooping, graceful leading shoot
  • Rough, scaly, reddish brown bark
Hauteur
12 à 21m
Envergure
6 à 10m
Feuilles
dark green, evergreen
Fleurs
yellow, green, 0,5 à 1cm
Fruits
brown, Autumn

Problèmes courants

  • Hemlock woolly adelgid — Small insects that feed on sap and cause needle drop and branch dieback.

La cultiver

Multiplication
seed, cuttings
Quand planter
spring, autumn
Hivernage
Ensure the root zone is well mulched to retain moisture and protect against deep freezes.
En pot
It is not ideal for long term container growth due to its large size, but young specimens can be kept in large pots for a few years.

Cuttings

  1. Take semi hardwood cuttings in late summer.
  2. Dip the base in rooting hormone.
  3. Place in a well draining medium and keep humid until rooted.

Group with other acid loving, shade tolerant shrubs to create a cohesive woodland aesthetic.

Bonnes associations

  • Mountain Laurel — They share similar requirements for acidic soil and partial shade.
  • Rhododendron maximum — These plants naturally grow together in cool, moist woodland settings.

Espèces similaires

  • Tsuga caroliniana — It is a smaller, more drought tolerant relative found in the southern Appalachians.

Science

Famille
Pinaceae
Genre
Tsuga
Ordre
Pinales
Classe
Pinopsida
Région d'origine
Eastern North America
Préservation
The species is currently threatened by the hemlock woolly adelgid, an invasive insect causing widespread decline.

It thrives in cool, moist, acidic soils and often dominates north facing slopes and ravines.

Intérêt pour la faune
nesting habitat, winter cover, seeds for birds
Pollinisateurs
abeilles, papillons
Utilisations
ornamental specimen, privacy hedge, wildlife habitat, bonsai

Au fil des saisons

JFMAMJJASOND
Floraison
Fructification
Feuillage

Repères écologiques

Salinité
1/9
Réaction du sol
3/9
Lumière
3/9
Température
3/9
Humidité
6/9
Nutriments
4/9

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Can I grow this in full sun?
It prefers partial shade, especially in warmer climates where afternoon sun can scorch the needles.
How often should I water it?
Keep the soil consistently moist, especially during the first few years after planting.

D'où vient le nom

The genus name Tsuga is the Japanese name for hemlock, while the specific epithet canadensis refers to its native range in Canada.

Bon à savoir

  • Hemlocks are incredibly shade tolerant and can grow in the deep forest understory for decades.
  • They are among the longest lived trees in the eastern United States.
  • The wood is relatively soft and was historically used for construction and paper pulp.

Aussi dans

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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.