Annual bluegrass.

En un coup d'œil

Niveau d'entretien

Facile

Type de plante

Grass

Lumière

Full sun to partial shade

Lumière en intérieur

Soleil direct

Arrosage

Tous les 1 à 3 jours

Taille adulte

6 to 12 inches

Croissance

Rapide

Rusticité

USDA 2 à 10

Floraison

Early spring to late autumn

Entretien

Because this is typically viewed as a weed, you should focus on prevention through healthy lawn maintenance. Keep your grass thick and tall to shade out seedlings. If you spot it, pull it by hand before it drops its seeds.

Arrosage

It prefers consistently moist soil to thrive.

Engrais

It responds well to nitrogen, though it usually gets what it needs from standard lawn fertilizer.

Taille

Regular mowing helps keep it from spreading seeds.

Rempotage

It is rarely grown in containers, but it would need a refresh if it becomes root bound.

Sol

Moist, compacted soils

pH du sol

6.0 to 7.0

Température

-10 à 30°C

Humidité

40 à 80%

Sécurité

Humains

There is no known toxicity to humans.

Enfants

No specific risks exist for children, though it is a common weed in play areas.

Allergènes de contact

The leaf blades can cause minor skin irritation or cuts if handled roughly.

Allergènes aéroportés

The pollen is a common trigger for seasonal hay fever.

Comestibilité

While not toxic, the foliage is too fibrous and unpalatable for human consumption.

Comment l'identifier

• Light green, soft leaf blades
• Boat shaped leaf tips
• Forms dense, low growing clumps
• Produces light green seed heads
• Ligule is prominent and membranous

Hauteur

0,05 à 0,3m

Envergure

0,05 à 0,2m

Feuilles

light green, deciduous

Fleurs

green, white, 0,1 à 0,3cm

Fruits

tan, Late spring to autumn

Problèmes courants

• Dollar spot — Small, bleached spots appear on the foliage during humid weather.

La cultiver

Multiplication

seed

Quand planter

spring, autumn

Encourage taller, more vigorous grasses to outcompete this species for light.

Bonnes associations

• Poa pratensis — They often grow together in managed turf environments.

Espèces similaires

• Poa trivialis — It has a similar appearance but prefers much wetter soil conditions.

Science

Famille

Poaceae

Genre

Poa

Ordre

Poales

Classe

Liliopsida

Région d'origine

Europe and temperate Asia.

Préservation

It is considered a widespread invasive weed in many regions.

It thrives in compacted soils and disturbed areas where other grasses struggle to grow.

Intérêt pour la faune

seeds provide food for small birds

Pollinisateurs

abeilles

Utilisations

ground cover, wildlife food source

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Is it a perennial or annual?

It is typically an annual, but can act as a short lived perennial in mild climates.

How do I get rid of it?

Maintain a dense lawn to shade out seedlings and prevent seed germination.

D'où vient le nom

The name Poa is the ancient Greek word for fodder, while annua refers to its annual growth habit.

Bon à savoir

• It is one of the most successful weeds in the world.
• It can produce seeds even when mowed extremely short.
• The name annua refers to its annual life cycle.