Seawrack

Zostera marina

Native to:
Aleutian Is., Algeria, Baleares, Baltic States, Bangladesh, Belgium, Bermuda, Bulgaria, Canada, Central American Pacific Is., China, Corse, Denmark, East Aegean Is., Finland, Føroyar, France, Germany, Greece, Greenland, Honduras, Iceland, Ireland, Italy, Japan, Korea, Kriti, Krym, Labrador, Mexican Pacific Is., Mexico, Morocco, Myanmar, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Poland, Portugal, Prince Edward I., Romania, Russia, Sardegna, Sicilia, Spain, Sweden, Thailand, Transcaucasus, Türkiye, Türkiye-in-Europe, Ukraine, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Zosteraceae
Genus:
Zostera
Species:
Zostera marina
USDA Symbol:
ZOMA

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
120 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
may,jun,jul,aug,sep

Garden & Ecology Notes

Wildlife Value:
waterfowl, fish, invertebrates, sea turtles
Deer Resistant:
Yes
Salt Tolerant:
Yes

Soil Requirements

Soil Type:
sandy, nutrient-poor, submerged sediment
pH:
5.5 - 8.5 (slightly acidic to alkaline)
Drainage:
tolerates poor drainage
Moisture:
consistently submerged
Notes:
thrives in saline, coastal marine environments

Propagation & Germination

Notes:
Seeds require continuous submersion in seawater; germination is typically vegetative via rhizome spread in natural conditions.

The above propagation data sourced from Claude AI