Family Index

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Scientific Name

Posidonia australis

Family Name

POSIDONIACEAE

Common Name

Southern Eelgrass

Status

Height

Flowers

Flowerhead contains 2-6 spikes, up to 6.5cm long.

Fruit

Form

Perennial marine herb with 2-3 flat, thin, leaves per shoot, each 60cm long.

Municipalities

Break O'Day; Burnie; Dorset; Flinders Island; Georgetown; Glamorgan-Spring Bay; Huon Valley; King Island; Kingborough; Waratah-Wynyard; West Coast

Communities

Habitat Notes

Just below the low water mark on coasts of the North West, North East and Furneaux Group.

Site Tolerance

Frost Tolerance

Soil Tolerance

General Notes

Propagated from seed, fresh seed produces the best results. Can also be grown by division, although re-establishment can be slow. Suitable below powerlines.

Propagation Details

Propagation Calendar

Flowering Months

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Seed Collecting Months

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sowing Months

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Cutting Months

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Seed Information

Seed Collection

Fruit is buoyant in the water, up to 3cm long and flattened. The seed is winged.

Seed Treatment Method

Seed Storage Life

Viable Seeds Per Gram

Seed Treatment Notes

Germination Time

Suitable for Direct Seeding

Cuttings

Expected Time to Take Root

Expected Time to Plant Out

Propagation by Division N.B. Transplant only from nearby to avoid disease.

Yes

Cutting Notes