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 Grey leaves with nearly white undersides and long tapering spikes of white flowers from midsummer into autumn. Deciduous, best in a sheltered position in full sun in drained soil. 2m.
Very pretty cream margined selection of Box. Grow it as a free standing shrub and don't clip it for the best effect - this also seems to reduce problems increasingly seen with box. 1.2m in 10 years if you're lucky.
Clumps of brilliant butter yellow new foliage in spring with black flowers on this selection of the native sedge. Best in damp to wet soil in part sun. 60cm.
AGM An excellent small flowered pom-pom type of hardy Chrysanth in a glowing acid yellow. A lovely contrast to the warmer colours in autumn. Drained soil in sun, 90cm.
Glowing greenish yellow winter stems are the main reason for growing this dogwood. Small clusters of white summer flowers followed by white berries. 2.4m if you don't cut back to a stump every year..
A recent introduction from Kurt Bluemel. Dwarf growth to only 1.4m. Steely grey foliage and warm buff flowers from July (rather than October as with other cultivars). Full sun, evergreen.
Miss Willmott's Ghost. Very pretty biennial with rosettes of paddle shaped leaves and strong upright stems of spiny silvery flowers in summer. Drained soil in sun. 60cm.
AGM Near white flowers soon flush pink then near purple on dark burgundy stems over clumps of striking leaves the same colour. Full sun, drained soil. 60cm.
AGM Beautiful silver veined, lance shaped evergreen leaves. A trailing/climbing form that will self cling to a suitable surface. Best in at least some shade in most soils except wet. Can be pruned to size.
AGM Large scarlet and rich magenta flowers in good numbers on this vigorous bushy hardy Fuchsia. Average soil in part or light shade for best growth, can scorch in hot sun. 90cm.
TENDER AGM Rarely seen now this vigorous species from Mexico has large pale green leaves and big bunches of incredibly long tubed orange-red flowers with distinct creamy-green sepals. Potentially 2m!
AGM A elegant species with slender bright reddish pink flowers with purple corollas and red filaments. Smallish but broad leaves try to be evergreen. Borderline hardy - drained soil in a sheltered position, light shade. 60cm?
AGM Unusual lanceolate leaves on a willowy upright plant producing masses of elegant red and purple flowers from midsummer. Distinctive reddish stems. Should be hardy in drained soil, best in some shade.
AGM Beautiful narrow golden leaves on this elegant hardy fuchsia, often tinted red with cooler weather. Delicate looking red flowers drip from the stems in summer and autumn. Potentially to 1.5m but usually less.
AGM A mound of large pale blue flowers veined crimson. 45cm. Flowering June-August onwards. Reasonable soil in open or sunny position. Unique colour for a long flowering plant.
AGM This brilliant hybrid from Cambridge Botanic Garden has intense blue flowers with white centres from May to July and September onwards. Open position in average soil. 60cm x 90cm. Named after a street in Cambridge.
A distinct colour break from Coen Jansen in Holland. Low mounds of divided, deep green, leaves studded with masses of bright salmony pink flowers May to September. Drained soil in sun.
AGM An unusual form with many bright rosy pink flowers with reddish veins on a compact plant to 20cm. For drained soil in sun, ideal for the front of a border.
