There are many nurseries from which you can obtain native and or indigenous plants.
The southern Dandenongs are serviced by the Southern Dandenongs Community Nursery which is located within the grounds of Birdsland at 271 Mt Morton Road Belgrave Heights. Opening hours are 9am-12pm Sunday, 9am-4pm Tuesdays and Fridays.
Southern Dandenongs Community Nursery stocks a wide variety of local provenance indigenous plants, from Eucalypts to ground covers and grasses. Prices start at $3.
Become a member of the nursery and you will be eligible for free plants in exchange for volunteering a few hours to help produce the stock.