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

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.

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
- Take semi hardwood cuttings in late summer.
- Dip the base in rooting hormone.
- 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
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
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.
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.
