Join the RHS today and support our charitable work
Free personalised gardening advice
RHS members get reduced ticket prices
RHS members get free access to RHS Gardens
Free entry to RHS members at selected times »
Reduced prices on RHS Garden courses and workshops
020 3176 5800
Mon – Fri | 9am – 5pm
Help us achieve our goals
Join the RHS today and support our charity
I have forgotten my password
Register for free to receive our newsletters, add comments to blogs/articles and to save content.
See what events are on near you and browse your bookmarked pages.
Ornamental grasses fall into two main groups, evergreen and deciduous. Deciduous grasses need cutting back annually so that they will look their best. Evergreens just require a tidy-up.
Cutting back grass. Image: RHS
Early spring to mid-spring depending on the species.
Deciduous grasses, which turn a golden, straw brown rather than necessarily lose their leaves, need different treatment from those with are evergreen.
Ornamental grasses: dividing
Ornamental grasses: selection
the RHS today and get 12 months for the price of 9
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.