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 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.
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 elegant variegated form with an upright clump forming habit and fine foliage with white margins. Excellent and airy height for mixing into formal borders or naturalistic gardens. Good soil in sun. 1.5m.
AGM Not as dwarf as the name suggests! A classic form of catmint well suited to the traditional edging of large herbaceous borders or formal paths where a billowing cloud of lavender blue flowers all summer is required. Drained soil in sun. 60cm.
AGM Delightful white daisies flushed with rose-pink that deepen as they age, opening in sun. On dull days the grey-blue backs are still interesting! Bushy habit for well drained soil in a sheltered sunny spot. 30cm.
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.
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.
A delightful, hardy penstemon with masses of rich garnet red flowers and narrow leaves. Bushy habit flowering pretty much all summer and autumn. 45cm. Sun, drained soil.
AGM An excellent older Russian selection with good, healthy, deep green foliage with a purple flush. Good heads of strongly scented purple flowers with a white star in late summer. Mildew resistant. Good soil in full sun, 1m.
AGM Clump forming Campanula relative with lax stems of greyish-green leaves and balloon-like buds opening to wide bells of blue or pink flowers (rarely white). Decent soil in sun or light shade. 40cm.
AGM A vigorous rambler with clouds of strongly scented white flowers with golden stamens in late spring and early summer. Needs a large support, for sun or shade, best in good soil. 6m. Cutting raised.
AGM. Luxurious deep purple flowers all summer and autumn on this excellent, hardy, shrubby sage. Slightly suckering so able to survive colder winters. Drained soil in sun. 60cm.
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.
AGM Brilliant glowing magenta pink flowers on a bushy plant to 60cm. Leafier than some types. For a well drained soil in full sun and a sheltered position.
One of our favourite forms of this useful hardy herbaceous sage. Soft green foliage and masses of rich lilac lavender pink blue flowers to 45cm in summer. Drained soil in sun.
AGM Low bushy plants covered in bluish light purple flowers throughout the summer. An unusual colur and it really stands out. Drained soil in full sun. 50cm.
