RHS - UK's leading gardening charity / RHS
Become an RHS Member today and save 30% on your first year. The Royal Horticultural Society is the UK's leading gardening charity, join us for days out at stunning gardens, exclusive access to flower shows & expert advice.
10 award-winning (AGM) late-flowering perennials / RHS
Aster × frikartii ‘Mönch’ bears loose clusters of long-lasting daisies. Aster × frikartii ‘Mönch’ is one of the finest of all sun-loving perennials: neat and well branched but elegant, prolific, long-flowering and with soft lavender-blue petals surrounding a yellow eye. Lovely with grasses, sedums and schizostylis, it’s also good ...
How to grow buddlejas / RHS - RHS Gardening
Water in well and keep the soil moist but not soggy while the plant established (this typically takes 18 months). Planting dwarf buddlejas in a container, use a peat-free multipurpose potting compost with added John Innes. Add some slow-release fertiliser …
Buddleja (Butterfly bush) / RHS
Buddleja. Common name: Butterfly bush. Known as the butterfly bush, the fragrant flowers of buddleja are a favourite nectar source for butterflies. These undemanding, mainly deciduous shrubs, deserve a place in every garden with their spectacular displays of blooms and honey scent. Some selections are compact and can be grown in containers.
How to grow dahlias / RHS - RHS Gardening
The top of the tubers, where the shoots appear, should be at the soil surface. Space plants about 60cm (2ft) apart. plant a few millimetres lower than they were in the container. Space plants 50–60cm (20in–2ft) apart. over the soil to hold in moisture, leaving a …
Tips for growing orchids at home / RHS - RHS Gardening
Grey, shrivelled roots mean they're too dry - give them a mist to increase humidity. Use rainwater or boiled water for misting and watering- they don't appreciate the chlorine in fresh tapwater. Also, make sure water is at room temperature. Don't mist the flowers: this can lead to …
How to grow bulb irises / RHS - RHS Gardening
Choose a sunny position where the soil is well-drained. Iris reticulata planted en mass under a tree canopy can create an impressive spectacle to herald spring. Plant bulbs as soon as possible after purchase. Planting them up to 15cm (6in) deep can help encourage your bulbs to reflower more reliably the following year.
Primroses and polyanthus / RHS - RHS Gardening
Although some plants are capable of surviving after their first year, flowers in subsequent years are likely to be smaller and fewer in number, so plants are best replaced each year. The fairy primrose, Primula malacoides, has sprays of fragrant flowers on long stems and is often sold as a houseplant. Again, discard after flowering.
Roses (Rosa) / RHS
Roses (Rosa) are a classic and instantly recognisable plant, ideal for almost every style of garden. They flower abundantly from early summer in a choice of colours including pastel shades of pink, peach, cream or snowy-white; vibrant yellow and gold; orange, crimson or red. Many roses are fragrant. Some types flower in one flush of blooms ...
Hibiscus rosa-sinensis - RHS Gardening
Hibiscus rosa-sinensis. Tropical hibiscus is native to China but widely grown throughout the tropics and subtropics where it can be tree-like. It is tender in Britain and is grown as a pot plant indoors where it may reach 2m (6½ft). Although widely grown as houseplant it can be tricky to manage in a dwelling. The large showy blooms only last a ...