It will also offer 120 cultivars of English grown containerised roses in autumn 2012.
The site is mainly focused on retail but has a wholesale section showcasing specialist plant sourcing and contract growing services. Kelways will also use the site to launch its collection of hardy garden ferns.
Managing director Dave Root said: "Kelways has always been synonymous with peonies and irises but we do in fact offer a great deal more both on-line, in our garden centre, and via our contract growing service which entails working directly with designers and clients. This new web site presents an opportunity to deliver our products and services to more people than ever."