Scientific Name: Lythrum salicaria

Common Name: purple loosestrife

Family Classification (Clade): Eudicots

Family: Lythraceae

Threatened Species Status: Vulnerable

Permit: It is an offence to collect, disturb, damage or destroy this species unless under permit.

Form Description: Erect perennial herb with a stout aerial stem, and lance-shaped, opposite, stalkless leaves.

Height (m): 0.5 – 1

Flowers: Flowers are tubular, deep pink to purple with 5 or 6 petals, and borne in spikes.

Fruit: Capsule

Municipality
Break O’DayDorsetGeorge TownKentishKingboroughLatrobeLauncestonMeander ValleyNorthern MidlandsWest Tamar
Plant Communities
RiparianSedgeland and Wetland
Habitat Notes

Swamps, streambanks and rivers in the north and north-east, and between gaps in Melaleuca ericifolia forest.

General Notes

Often self-sows in open ground. Cuttings can be taken from non-flowering laterals in the middle of summer and struck outdoors in shade. Requires constant moisture. Can reproduce vegetatively and may be bird dispersed. An easy garden plant which thrives in any soil, and forms a bushy and well-shaped clump. Cut back to ground level in winter.

Propagation Calendar

  • Flowering Month
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Seed Collecting Month
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Sowing Month
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Cutting Month
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Propagation Method
SeedDivision

Seed Information

Seed Treatment Method

Bog Method The seeds of many wetland species need to be kept wet to germinate. Punch a hole in the side of a recycled polyfoam box so that it holds water to the required depth. Sit the tubes in the box to germinate. Once germinated, punch holes in the bottom of the box to allow drainage.

Cutting & Division Information

Grown by division.