Herbaceous perennials - defined as leafy, soft-stemmed plants, where the top growth dies back over winter. They are longer-lived than annuals or biennials (so at least three years), but don't produce a woody branch structure which persists over winter (as opposed to shrubs). Herbaceous perennials form the backbone of many garden borders, as they provide some of the best displays of flower and colour of any garden plant, and are the undoubted stars of the summer garden. Beds devoted solely to herbaceous perennials are a stunning sight through late spring and summer, but care needs to be taken in choosing varieties which extend the flowering season as much as possible, otherwise the border can look empty for 6 months of the year. Generally they are mixed with other plants such as shrubs, trees and bulbs, or combine them with grasses for a prairie-style planting.
As herbaceous perennials come in all shapes and sizes, and thrive in a wide range of conditions, choosing the right one for you is important. Use the size, form and aspect filters to narrow down your choice.