North Yorkshire
Essex
Devon
Surrey
Greater Manchester
General enquiries 020 3176 5800 Mon – Fri | 9am – 5pm
Help us achieve our goals
Make a donation
I have forgotten my password
Log 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.
We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records.
Virtually all of the features of the old searches are still available and in addition we have added several new features to create a more comprehensive and user friendly search experience.
When using this search
Search by plant name, key attributes or both to find plant details and a list of suppliers.
AGM plants have been through a rigorous trial and assessment programme. They are:
Easy to grow and fast to flower, annuals and biennials bring quick colour to the garden. They are usually cheap to buy in great numbers, but make a big impact in the garden. Have a go at growing them from seed
Hardy annuals to direct sow are a great choice for combining economy, colour and just being so easy to grow: and some will even self-sow too!
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Hide Filters
Refined by:
Sort by:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
L. × speciosa are clump-forming perennials, often grown as annuals or biennials, with basal rosettes of pale to dark green, bronzy, red-flushed or dark red foliage. In summer and early autumn they produce dense, upright spires of two-lipped, tubular flowers in shades of red, pink, purple or blue
H. matronalis is a rosette-forming biennial, or short-lived perennial, with leafy stems growing to around 90cm. Loose clusters of white, or pale to mid-purple, scented flowers appear in late spring and early summer
C. tinctorius is an erect, branching annual to 60cm, with spiny leaves and vivid orange or yellow, thistle-like flower-heads with prominent green bracts
'Chris Harrod' is a vigorous, free-flowering cultivar to just over 2m in height, bearing usually 3 flowers on long stems, to 25cm. Both standards and wings are pale blue, waved. Suitable for exhibition
'Dawn Chorus' is a compact annual climber to 1m, with slightly scented flowers 4cm across, the petals white, violet-purple on the reverse
T. rotundifolia is a large, branching annual to 2m, with large, broadly ovate leaves and vivid orange, daisy-like flowers 8cm across
'Apollo Pink' is a half-hardy annual, to 65cm in height, with finely-divided green leaves and, from summer into autumn, pink daisy-like flowers, to 10cm in diameter, with prominent yellow centres
'Mollie Rilstone' is a strongly-scented, large flowered, Spencer cultivar with a cream ground and a pale-pink, picotee edge; the flower begins to open before the colours pale. Height 1.5-2.5m
'Transformer' is a feathery-leaved annual with yellow, saucer-shaped flowers in late spring and early summer. The pale green seedpods mature to ivory, and are strongly ribbed, resembling an inside-out umbrella
'Dorothy Eckford' is an annual climber to 1.9m, with fragrant white flowers from early summer
Easy to grow and fast to flower, annuals & biennials bring quick colour to the garden, and they include many of our favourite wildflowers. Have a go at growing them from seed.
View specially-selected annuals & biennials at the RHS Plants Shop
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.
