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Scientific Name
Prostanthera cuneata
Family Name
LAMIACEAE (LABIATAE)
Common Name
Alpine mint bush
Status
Extinct
Height
0.6m - 1.0m (60-100cm)
Flowers
Flowers white, with throat and lower parts of the lobes spotted with purple.
Fruit
Woody capsule
Form
Spreading shrub; strong-smelling.
Municipalities
Launceston; Northern Midlands
Communities
Riparian
Habitat Notes
Previously reported as local on the banks of the South Esk River, however it may now be extinct in Tasmania.
Site Tolerance
Moist
Frost Tolerance
Soil Tolerance
Phosphorous intolerant; Well-drained
General Notes
Prostantheras require full sun and excellent drainage. Even in ideal conditions they are not long-lived. To overcome the problem, the Australian National Botanic Gardens began, in the 1970s, to graft Prostanthera on to Westringia fruticosa rootstock. If grafting is not done, Prostanthera generally needs to be repropagated regularly. 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
The seeds develop within the calyx when the floral tube falls from the flower. when the calyx changes colour, collect those seeds which feel enlarged. bag immature fruit or place a groundsheet under the plant , or collect capsules near maturity and let dry in warm place
Seed Treatment Method
Seed Storage Life
Short
Viable Seeds Per Gram
Seed Treatment Notes
For Prostantheras, propagation from seed has given erratic results. Low viability may occur in heavy seed crop years. Use fresh seed.
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.
No
Cutting Notes
Prostantheras generally can be grown from cuttings, but may be slow to strike. Misting is not advised as cuttings tend to rot.
Copyright 2000-2009, Understorey Network Incorporated. Updated 2024-12-11
Database development and website design by
Andrew Smith