The Award of Garden Merit (AGM) issued by the Royal Hoticultural Society (RHS) helps gardeners find reliable, consistent plants that will provide particularly good value in the garden.The award is granted after trials at the RHS’ garden at Wisley in Surrey and/or assessment at specialist collections or discussion at meetings. There is a set list of criteria that plants have to meet to be deemed worthy of the AGM. For more information on the AGM please visit the RHS Website.
Nursery owner, Tim Fuller, has been involved with judging the trials at RHS Wisley since 2008.
A recent introduction with very compact growth and masses of small deep pink flowers in late spring. Not really a groundcover but a spreading patch to 15cm high.
AGM Pure white flowers without the usual pink calyx. Introduced from Mount Olympus by Liverpool Botanic Garden. Shame Vits didn't have this for her "pale garden"! Deciduous.
Taller plant than typical for the species with large white flowers. Elegant. 30cm. Finely divided foliage and open saucer shaped flowers on this British native. Very tolerant and thrives in dry sunny positions. Main flowering from May-July, repeating August-October.
AGM Splendid flaming spikes of bright coral-orange buds that don't fade as they open until they are going over giving a small cream section at the base of the head. Sun, drained soil. 1m.
AGM Warm bronzed orange buds open to clear yellow flowers on distinctive dark stems. A stand out plant in the Wisley Trial. Neat clumps flowering July-September, 75cm. Drained soil in sun.
An excellent variety from the former Four Seasons nursery. Bronzey-orange-pink buds open to near white flowers to 90cm in late summer and autumn. Drained, even dry, soil in full sun.
The super, spring flowering hardy perennial pea relative. Low clumps of deep green foliage and branching stems of bright purple-blue flowers March to May. Some may be near white. 30cm.
The pale pink and white flowered form of this spring flowering hardy perennial pea relative. Low clumps of deep green foliage and branching stems of flowers March to May. Ordinary soil in sun. 30cm.
An excellent narrow leafed variety which will produce a tight clump of upright stems topped with golden pink flowers in late summer and autumn. Good winter effect. 1.4m. Average soil in full sun.
A fine older variety from Ernst Pagels. Upright columns of narrow foliage topped with masses of purplish-pink flowers that fade to bright silver seedheads. 1.8m Decent soil in sun.
Purple flushed new growth and dainty heads of bright rose-pink flowers in summer make this a great rockery or front of border plant. Drained soil in full sun. 20cm.
AGM Pure white daisies over greyish foliage making a low, rather sprawling plant for the front of the border. Hardy in a warm sunny spot with good drainage. 30cm high, 60cm spread.
TENDER Scented. AGM Chunky foliage and enormous bright pink flowers with darker, near black, feathered markings from early spring through summer. Impressive! 40cm.
TENDER AGM SCENTED One of the best known scented types with deeply divided leaves and heads of smallish pink flowers. The main reason for growing is the scent and flavour of the foliage. 40cm.
Low clumps of greyish foliage and masses of over-the-top creamy caterpillar-like flowers from midsummer till the frosts. Well drained soil in sun. 45cm.
AGM An excellent hardy form with spires of medium sized flowers in a blend of blue, purple and white. Deadhead stems as they finish and cut back hard in spring. 60cm. Drained soil in full sun.
Syn, P polymorpha. A giant clump forming perennial with fluffy spikes of white flowers almost all summer, pinkish red seedheads later. Lush green leaves too. Ordinary soil in sun. 2.4m.
A mat forming perennial of almost leafless stems producing masses of palest pink, near white, starry flowers from spring til autumn. Drained soil in sun or part shade. 30cm.
