Here are some great sites to visit.
Sue Templeton’s Unlimited Perennials
for all things Salvia’s-Information and Mail order. Join the Salvia Association of Australia
Robins Salvias
Salvia information-bear in mind that this a U.K based site
Yoji’s Salvia Garden
Japanese site with lots of photo’s
American Penstemon Society
For all things Penstemon-Information, photo’s, seed sources
Alplains
Excellent source of plant seed
Raithby Plant Nursery
Mail order nursery from Tasmania specialising in perennials
Woodbridge Nursery
Mail order nursery from Tasmania specialising in perennials
Lambley Nursery
Mail order nursery in Victoria specialising in drought tolerant perennials
Mistydowns Nursery
Mail order nursery in Victoria specialising in Heritage roses
huon perennials 