Guide botanique
Yorkshire fog.
Holcus lanatus
Prononciation HOL-kus lah-NAY-tus
Aussi appelée Common Velvetgrass, Fog Grass, Mesquite, Soft Grass, Soft-meadow Grass, Tufted Softgrass, Velvet Grass

Yorkshire fog is a soft, perennial grass that often grows in clumps. It is quite adaptable and frequently found in meadows or along roadsides. You will recognize it by its velvety texture and pale, purplish flower heads.
En un coup d'œil
- Niveau d'entretien
- Facile
- Type de plante
- Perennial grass
- Lumière
- Full sun to partial shade
- Lumière en intérieur
- Soleil direct
- Arrosage
- Tous les 3 à 7 jours
- Taille adulte
- 30 to 60 cm
- Croissance
- Rapide
- Rusticité
- USDA 4 à 9
- Floraison
- Late spring to mid summer
Entretien
Keep the soil consistently moist as this grass thrives in damp conditions. Watch for yellowing leaves which can indicate poor drainage or lack of nutrients. It spreads easily, so keep an eye on it if you are planting it in a garden bed.
- Arrosage
- Keep the soil evenly moist but not waterlogged.
- Engrais
- Apply a balanced fertilizer during the active growing season.
- Taille
- Trim back dead foliage in late winter to encourage fresh spring growth.
- Rempotage
- Repot when the root system becomes crowded and starts to lift out of the container.
- Sol
- Moist, fertile, well-draining soil
- pH du sol
- 5.0 to 7.5
- Température
- -20 à 35°C
- Humidité
- 40 à 80%
- Résistance à la sécheresse
- Faible
- Durée de vie
- Perennial, typically 3 to 5 years.
- Résistance aux chevreuils et lapins
- Moyenne
Signes qu'il faut rempoter
- Roots growing out of the drainage holes
- Water sitting on the surface for too long
- The plant becoming root-bound and stunted
Sécurité
- Humains
- It is not considered toxic to humans, though it is not a food source.
- Enfants
- The foliage is generally safe, but the sharp seed heads can be irritating if handled roughly.
- Allergènes de contact
- The fine hairs on the leaves can cause mild skin irritation in sensitive individuals.
- Allergènes aéroportés
- The pollen is a significant allergen for many people during the late spring and summer months.
- Comestibilité
- This grass is not intended for human consumption and may cause digestive upset.
Comment l'identifier
- Soft, velvety hairs on leaves
- Pale green or purplish flower spikes
- Forms dense, low growing tufts
- Ligules are membranous and hairy
- Hauteur
- 0,2 à 1m
- Envergure
- 0,3 à 0,6m
- Feuilles
- gray-green, semi-evergreen
- Fleurs
- pink, purple, white, 0,5 à 0,8cm
Problèmes courants
- Rust — Fungal infection causing orange or brown pustules on the leaves.
La cultiver
- Multiplication
- seed, division
- Quand planter
- spring, autumn
- Hivernage
- The foliage may die back slightly in cold weather, but it generally remains green in milder climates. No special protection is required.
- En pot
- It is rarely grown in containers as it prefers open ground, but it can be kept in a large pot if kept consistently moist.
Division
- 1. Dig up a mature clump in early spring.
- 2. Use a sharp spade to divide the root ball into smaller sections.
- 3. Replant the sections immediately in moist soil.
Seed
- 1. Collect seeds in late summer once they turn brown.
- 2. Sow seeds directly into prepared soil in autumn.
- 3. Keep the area consistently moist until germination.
Pair this grass with moisture-loving wildflowers to create a naturalistic meadow aesthetic.
Bonnes associations
- Meadow buttercup — They naturally occur together in damp, grassy meadows.
- Garden sorrel — This plant thrives in similar acidic, moist soil conditions.
Espèces similaires
- Holcus mollis — It is very similar but spreads more aggressively via long, underground rhizomes.
Science
- Famille
- Poaceae
- Genre
- Holcus
- Ordre
- Poales
- Classe
- Liliopsida
- Région d'origine
- Europe, North Africa, and Western Asia.
- Préservation
- It is a common, widespread species and is not of conservation concern.
It is a resilient grass that spreads via seeds and short rhizomes, allowing it to dominate in damp, acidic meadows.
- Intérêt pour la faune
- larval host plant
- Pollinisateurs
- papillons
- Utilisations
- ornamental grass, erosion control, pasture forage
Au fil des saisons
Repères écologiques
- Salinité
- 2/9
- Réaction du sol
- 4/9
- Lumière
- 7/9
- Température
- 5/9
- Humidité
- 6/9
- Nutriments
- 3/9
Taxonomie vérifiée avec le GBIF.
Ce qu'on demande souvent
- Is it a good lawn grass?
- It is generally not recommended for lawns as it grows in clumps and can look untidy.
- How do I control it?
- Regular mowing before it sets seed is the most effective way to prevent it from spreading.
D'où vient le nom
The genus name Holcus comes from the Greek word for a type of grass, while the specific epithet lanatus refers to the woolly, hairy texture of the leaves.
Bon à savoir
- It is often called Yorkshire fog because of the way the flower heads appear hazy in the morning light.
- The plant thrives in damp, nutrient-poor soils where other grasses struggle.
- It is a highly successful colonizer of disturbed ground.
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.
