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 Delightful tiny leaves on this slow growing form densely arranged on red stems. Can grow as groundcover (in a trough?) or will climb in time. Sun or shade.
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 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.
AGM Brilliant rich deep pink flowers with narrow wavy petals on this striking form. Came to us unlabelled but tentatively identified! Hot sunny position, well drained. 60cm.
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 Clump forming Campanula relative with lax stems of greyish-green leaves and balloon-like buds opening to wide bells of blue flowers. Decent soil in sun or light shade. 40cm.
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 Rich luxuriant red flowers of a good size on this fairly hardy shrubby sage with equally deep green leaves. Well drained soil in full sun for best results. 60cm.
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.
AGM Hair-like bright green foliage to 40cm. the flowers fountain up and form a light layer of wispy hair-like material over the top of the foliage. Drained soil in sun.
AGM A distinctive form with light-mid pink flowers with slightly swept back rays (petals) making it instantly recognisable. Dense bushy habit to 75cm. Good soil in sun.
AGM. Clumps of upright, branching stems with masses of lavender flowers in autumn. Dark stems and foliage contrast well. 1m Average soil in sun or part shade.
AGM A compact hybrid with grassy foliage and masses of light lilac pink flowers with darker centres all summer. Maybe hardy in well drained soil in full sun or grow in a pot and take in overwinter. 40cm.
AGM A larger species with pale green and white flowers with showy burnt orange coronas in heads to 40cm. Almost hardy in the UK and needs drained soil in full sun.