Neptune grass.

En un coup d'œil

Niveau d'entretien

Difficile

Type de plante

Seagrass

Lumière

Full sun in shallow marine waters

Lumière en intérieur

Lumière vive indirecte

Arrosage

Tous les 0 jours

Taille adulte

1 meter leaf length

Croissance

Lente

Rusticité

USDA 9 à 11

Floraison

Autumn

Entretien

This plant requires a stable marine environment with specific salinity and water quality parameters. It is not suitable for cultivation in standard home aquariums. Watch for signs of water pollution or temperature fluctuations which can cause rapid decline.

Arrosage

This is an aquatic plant that must remain submerged in seawater at all times.

Engrais

It obtains nutrients directly from the marine water column and sediment.

Taille

Pruning is not necessary or recommended for this wild species.

Rempotage

This plant is not suitable for container cultivation.

Sol

Marine sediment

pH du sol

8.0 to 8.4

Température

10 à 28°C

Humidité

80 à 100%

Sécurité

Humains

There is no known toxicity to humans, though it is not edible.

Enfants

No specific risks exist for children, but it should remain undisturbed in its natural marine habitat.

Comestibilité

This plant is not for human consumption.

Comment l'identifier

• Long ribbon like green leaves
• Forms dense underwater meadows
• Produces small white flowers
• Fibrous brown root structures

Hauteur

0,1 à 1m

Envergure

1 à 10m

Feuilles

bright green, dark green, evergreen

Fleurs

greenish, 1 à 2cm

Fruits

brown, Spring

Problèmes courants

• Eutrophication — Excess nutrients in the water cause algal blooms that block necessary sunlight.
• Mechanical damage — Boat anchors frequently tear up the rhizomes and destroy large patches.

La cultiver

Multiplication

seed, rhizome division

Quand planter

spring

This plant is a foundational species that supports entire marine communities rather than garden companions.

Espèces similaires

• Cymodocea nodosa — It is another common seagrass found in the Mediterranean.

Science

Famille

Posidoniaceae

Genre

Posidonia

Ordre

Alismatales

Classe

Liliopsida

Région d'origine

Mediterranean Sea

Préservation

This species is protected under international law due to its vital role in Mediterranean ecosystems.

It grows in dense underwater meadows that stabilize sandy seabeds and provide essential shelter for marine life.

Intérêt pour la faune

nursery for fish, carbon sequestration, coastal erosion control

Pollinisateurs

coléoptères

Utilisations

coastal protection, marine habitat restoration, carbon storage

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Can I grow this in a home aquarium?

No, it requires specific marine conditions and vast space that cannot be replicated in a home tank.

Is it a type of seaweed?

No, it is a seagrass, which is a flowering plant with roots, stems, and leaves.

D'où vient le nom

The genus is named after Poseidon, the Greek god of the sea, reflecting its aquatic nature.

Bon à savoir

• It forms vast underwater meadows that are thousands of years old.
• The plant produces oxygen and helps keep Mediterranean waters crystal clear.
• It is often called the lungs of the Mediterranean.
• Dried leaves are sometimes found on beaches and are known as sea balls.