Choose, grow, and combine herbaceous perennials with advice you can trust from the RHS.

From acaena to zingiber, this A-Z plant encyclopedia covers over 5,000 garden plants and flowers, including the vast number of new perennials made available in the last 10 years.

Specialist advice from a team of horticulture experts helps you choose the right plants for your garden with cultivation, propagation, and hardiness information to help you grow them successfully. Plus, photographs of planting schemes give you inspiration and tips for your own garden design.

An essential gardening reference for enthusiasts of all levels, the RHS Encyclopedia of Perennials will help you grow a perennially beautiful garden.