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 fantastic native fern making neat clumps of pinnate, ladder like evergreen fronds. Separate fertile fronds will be produced that are more upright. Said to need acid soil but it doesn't seem that fussy! 40cm.
AGM TENDER winter flowering species for a cold greenhouse or conservatory, or possible a very warm, sheltered garden. A bushy shrub with grey-green downy leaves and big spikes of strongly scented mauve flowers. 2.4m.
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.
From a compact root, flings out long flowering stems, which will scramble into adjacent shrubs, with black-eyed, magenta saucers. Golden leaves ageing to lime green. 1.5m across, 30cm high. Sun or light shade. May/June into autumn.
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.
(Geranium sanguineum x Geranium procurrens) AGM This Alan Bremner hybrid has intense reddish-pink flowers with bluish-purple shading over mounds of finely cut leaves from June to November. Average soil, sun or shade, 25cm. Brilliant.
A favourite of many gardeners. Evergreen rosettes overwinter become enlarged by flowering summer stems bearing masses of silvery-pink flowers till the frosts. 15cm by 1m spread. Any drained or dry soil in sun.