Help us achieve our goals:
make a donation »
Join the RHS today and support our charity
Free personalised gardening advice
RHS members get reduced ticket prices
RHS members get free access to RHS Gardens
Reduced prices on RHS Garden courses and workshops
020 3176 5800
Mon – Fri | 9am – 5pm
Make a donation
I have forgotten my password
Keep me signed in
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.
Get the know-how on looking after paths, beds and lots more
To help reduce flooding and subsidence think about using permeable paving, which allows rainwater to pass through and looks attractive too.
Saintpaulias, commonly known as African violets are widely grown, attractive houseplants originating from tropical East Africa. They are available in a many colours from white, through pink and red to purple and various flower types. With careful cultivation they can flower for many months and the compact plants are ideal for small spaces such as windowsills.
Algae, lichens, liverworts and moss are often found growing in damp or shady places in the garden on plants, soil and hard surfaces. They do not cause any harm, and can usually be tolerated as they can give a mature look to a garden. But they can make paths and lawns slippery and make ponds and borders unsightly so control is sometimes necessary.
It is common to find growths such as algae, lichens, liverworts and moss growing on hard surfaces. Contrary to popular belief, they do not damage what they are growing on, but can cause patios, drives, paths and steps to become slippery.
Green growths such as algae, liverworts and moss can accumulate on the glazing and surfaces of greenhouses, where they are unsightly and cut out light. They can be controlled by improving hygiene and ventilation.
In the UK avocadoes are grown as houseplants for foliage interest until becoming too large. In places where frost is rare they are occasionally seen growing outside as trees. For most, though, growing an avocado indoors from the stone is a better bet and fun for adults and children alike.
The many cultivars of Rhododendron simsii (often called Rhododendron indicum) are popular pot plants which are brought on, or ‘forced’, in warm, humid conditions for sale at Christmas.
Bananas (Musa and Ensete spp.) produce large, elegant leaves and the occasional bunch of fruits, which certainly make a majestic addition to any garden or conservatory. Although they are tender plants, some species are hardy enough to leave outside over winter, especially in the milder parts of the UK, so they are worth experimenting with in the garden.
This evergreen or semi-evergreen shrub makes a large, striking container plant for a conservatory or cool greenhouse. It is grown for its bold, trumpet-shaped flowers, which are often deliciously scented. Although these plants are not fully hardy, they can be positioned outdoors during the frost-free summer months.
Brugmansia were once known as Datura, but that name is now used only for certain annual or short-lived plants with similar but less pendulous flowers.
Enjoy the intoxicating fragrance of hyacinths and the dramatic blooms of amaryllis (Hippeastrum), 'Paper White' daffodils and other bulbs for Christmas and New Year. These bulbs are readily available and easy to grow in just a few months.
This plant group is extremely vast and diverse, from the very small and intricate to the striking and architectural. There is a cactus or succulent to suit everyone, whether young or old.
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.
Join the RHS today and get 12 months for the price of 9