To help you decide which types of plant are best suited to your garden and the planting position you have in mind, The Gardening Register have produced a guide to the different types of plants available. We have added a short description to aid identification, notes on how to prepare the site and look after the plant afterwards plus some examples.
Biennials are herbaceous plants that complete their life-cycle in two years. Growing in the first year and flowering in the next. Some plants grown as biennials are actually short-lived perennials, they tend to be dug up after flowering because they do not perform well in their second year.
Half Hardy Perennials are similar to hardy perennials in that they will also die down in autumn and grow again the following spring, however, they cannot withstand frost so they require to be protected over the winter or taken into a greenhouse.