Pocket BotanistGuide botanique
Northern sea oats.
Chasmanthium latifolium
Prononciation kaz-MAN-thee-um lat-ih-FO-lee-um
Aussi appelée Seaoats, broad-leaved chasmanthium, broadleaf chasmanthium, northern sea oats, river oats, Inland Wood Oats, Indian Wood Oats
Northern sea oats is a lovely native grass that brings a graceful, woodland feel to your garden. It is best known for its unique, drooping seed heads that look just like little oat clusters. You will love how it adds movement and texture to shady spots.
En un coup d'œil
- Niveau d'entretien
- Facile
- Type de plante
- Perennial grass
- Lumière
- Part shade to full shade
- Lumière en intérieur
- Lumière moyenne
- Arrosage
- Tous les 3 à 7 jours
- Taille adulte
- 3 to 5 feet tall
- Croissance
- Rapide
- Rusticité
- USDA 5 à 9
- Floraison
- Mid to late summer
Entretien
Plant this grass in a spot with consistent moisture to keep it happy. Watch for browning leaf tips if the soil dries out too much during the heat of summer. It is a vigorous grower that may spread, so keep an eye on its boundaries.
- Arrosage
- Keep the soil consistently moist but not waterlogged.
- Engrais
- A light application of balanced fertilizer in early spring is plenty.
- Taille
- Cut the foliage back to the ground in late winter before new growth starts.
- Rempotage
- Divide the clumps every few years to maintain plant vigor.
- Sol
- Moist, well draining soil
- pH du sol
- 6.0 to 7.5
- Température
- -25 à 35°C
- Humidité
- 40 à 70%
- Résistance à la sécheresse
- Moyenne
- Durée de vie
- Perennial, typically 5 to 10 years.
- Résistance aux chevreuils et lapins
- Moyenne
Signes qu'il faut rempoter
- Roots growing out of the drainage holes.
- Water running straight through the pot without soaking in.
- The plant looks stunted or stops growing.
Sécurité
- Humains
- This plant is not known to be toxic to humans.
- Enfants
- The sharp leaf blades can cause minor cuts if children play with them.
- Allergènes de contact
- The leaf edges can be sharp and may cause minor skin irritation if handled roughly.
- Allergènes aéroportés
- Like many grasses, the pollen can trigger seasonal allergies in sensitive individuals.
- Comestibilité
- The seeds are not considered edible for humans.
Comment l'identifier
- Drooping, oat like seed heads
- Broad, bamboo like green leaves
- Clump forming growth habit
- Copper colored seed heads in autumn
- Hauteur
- 0,9 à 1,5m
- Envergure
- 0,6 à 0,9m
- Feuilles
- green, deciduous
- Fleurs
- green, bronze, 1 à 3cm
- Fruits
- tan, copper, Autumn
Problèmes courants
- Rust — Fungal spots may appear on foliage during periods of high humidity.
La cultiver
- Multiplication
- division, seed
- Quand planter
- spring, autumn
- Hivernage
- Cut the foliage back to the ground in late winter or early spring before new growth begins. The dried seed heads can be left on through winter for visual interest.
- En pot
- It grows well in large containers, but ensure the pot is at least 40 cm wide to accommodate its root system.
Division
- 1. Dig up the clump in early spring.
- 2. Use a sharp spade to divide the root ball into smaller sections.
- 3. Replant the divisions immediately at the same depth as before.
Seed
- 1. Collect seeds in late autumn.
- 2. Sow them in pots or directly in the garden in spring.
- 3. Keep the soil consistently moist until germination.
Group this grass with other shade-loving perennials to create a lush, layered woodland look.
Bonnes associations
- Hosta — They share similar shade requirements and provide a nice textural contrast.
- Heuchère — These provide colorful foliage that complements the green grass blades.
- Christmas fern — They thrive in the same woodland conditions and add structural variety.
Espèces similaires
- Northern sea oats — This is the primary species in the genus.
Science
- Famille
- Poaceae
- Genre
- Chasmanthium
- Ordre
- Poales
- Classe
- Liliopsida
- Région d'origine
- Central and Eastern United States.
- Préservation
- It is secure in its native range and not of conservation concern.
It naturally inhabits moist, shaded floodplains and riverbanks where it stabilizes soil.
- Intérêt pour la faune
- larval host plant, provides winter cover, seed source for birds
- Pollinisateurs
- papillons
- Utilisations
- ornamental grass, erosion control, dried flower arrangements, woodland gardens
Au fil des saisons
Repères écologiques
- Salinité
- 2/9
- Réaction du sol
- 5/9
- Lumière
- 3/9
- Température
- 5/9
- Humidité
- 6/9
- Nutriments
- 5/9
Taxonomie vérifiée avec le GBIF.
Ce qu'on demande souvent
- Does it need full sun?
- No, it actually prefers partial to full shade.
- Is it invasive?
- It can be aggressive in some gardens due to self-seeding, so keep an eye on it.
D'où vient le nom
The name Chasmanthium comes from the Greek words for gaping flower, while latifolium means broad-leaved.
Bon à savoir
- It is one of the few ornamental grasses that thrives in shade.
- The seed heads turn a beautiful copper color as they dry in the fall.
- It is a native North American grass that is very easy to grow.
- The plant will readily self-seed in the garden if you do not remove the heads.
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.