Nurseries are a great source of knowledge as well as plants! Specialist indigenous plant nurseries are often run co-operatively or by volunteers, so do check opening hours before visiting. Be aware that many of the nurseries below were set up to preserve and propagate plant species endemic to their local areas. There is as yet no nursery dedicated specifically to plants indigenous and endemic to Stonnington. From near to further away, local (ish) nurseries include:

Bili Nursery and Landcare 525 Williamstown Rd, Port Melbourne VIC 3207
Bungalook Nursery 63-107 Fulton Road, Blackburn South, Vic 3130
Greenlink Box Hill 41 Wimmera St, Box Hill North VIC 3129
VINC (Victorian Indigenous Nurseries Co-op) Yarra Bend Road, Fairfield, VIC 3078
Bayside Community Nursery 315-317 Reserve Rd Cheltenham VIC 3192
Operation Revegetation Pty Ltd 72 Scoresby Rd, Bayswater VIC 3153
Greenlink Sandbelt 587 Heatherton Rd, Clayton South
La Trobe University Indigenous Plant Nursery (also has nesting boxes) Nangak Tamboree Wildlife Sanctuary, La Trobe Ave Bundoora
CRISP Indigenous Plant Nursery 17 Greenwood Avenue Ringwood, VIC 3134
Candlebark Community Nursery 308 Hull Rd Mooroolbark VIC 3138
Melton Botanic Garden 40 Lakewood Blvd, Melton VIC 3337
Conservation Collective 52 Westernport Hwy Somerville. Online catalogue, delivery available for seed and tubestock
Narrap Bush Nursery Healesville. Aboriginal run nursery from the Wurundjeri Narrap Team. For info contact <narrap.admin@wurundjeri.com.au>
Willum Warrain Aboriginal Bush Nursery Hastings. Aboriginal community-owned nursery specialising in local indigenous plants from the Mornington Peninsula (Bunurong country).
The nursery (and bookstore) at CERES cnr Roberts & Stewart Streets Brunswick East, VIC 3057 is permaculture focused but does stock First Nations food plants
Kuranga Native Nursery is a commercial outfit (nb: ‘native’ plants are not necessarily indigenous!) with an extensive range and helpful staff – 118 York Rd Mt Evelyn, VIC 3796
Newport Lakes Native Nursery is a small family run business specialising in plants of Melbourne’s western basalt plains, also very helpful – 2 Lakes Drive, Newport, VIC