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.
AGM Impressive tropical looking stems clad with braod leaves and topped with large spikes of glowing orange from in August-September to 1.5-1.8m. Good soil in part shade.
AGM Glorious shining white flowers over clumps of grey foliage from midwinter throughout spring. Well drained soil in full sun. Even better in a porch or cold greenhouse. 15cm.
Spuria. AGM A strong upright grower with sword-like leaves and sparkling white flowers with a golden yellow thumb-print to 1m+. Good soil in sun. Takes a while to settle.
AGM Neat clumps bearing masses of glowing yellow-orange flower spikes in summer to 80cm. Dark stems add to the effect. Drained but good soil in full sun for best flowers.
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 Stunning crabapple with masses of pinkish flowers that opent o bright white, strongly scented in mid-spring. Followed by bunches of small red fruits and autumn foliage. 4m+.
AGM An attractive clump forming grass from south America with rich green, narrow, leaves and arching stems holding clusters of red-tinted flowers all summer. Drained soil in sun. 60cm.
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.
TENDER SCENTED AGM. An upright bushy form with oak-shaped leaves with a strong brown mark in the centre of the young leaves. Pale pink flowers with darker marks. 30cm.
AGM Amazing long tapers of buff flowers to 2.4m from midsummer till the first frosts. Well drained soil in full sun or grow in a large pot and take in for the winter in cold areas.
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.
Stunning lilac pink flowers in large panicles on strong, upright stems to 1.5m or even more! Self-supporting. Smaller flowers than typical border phlox but the better for it! Good soil in sun.
AGM. A delightful little primrose hybrid with neat clumps of leaves and masses of light yellow flowers in spring on stems to 20cm. Good soil in light shade.
AGM Neat clumps of white margined pinnate leaves produce upright, wiry, branched stems topped with short dense spikes of maroon flowers in summer. 30cm. Good soil, sun.
AGM A shrubby, broom-like, plant with sparsely leafed branches festooned with golden yellow pea-like flowers in early summer. Strongly scented. Drained soil, sun. 2m.
AGM Clumps of upright stems with mid green leaves to 90cm. Topped with soft plumes of feathery golden buff flowers in late summer. Best in good, drained soil in full sun.
AGM An excellent, slightly taller, form of this pretty grass. Golden green flowers turn golden buff from midsummer and hold all winter. 1m. Drained soil in sun.
Clumps of very fine bright green leaves and wispy pale buff flowers in summer to 70cm. Hardier and a little bigger than the well known Stipa tenuissima. Drained soil in sun.
