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.
AGM Warm bronzed orange buds open to clear yellow flowers on distinctive dark stems. A stand out plant in the Wisley Trial. Neat clumps flowering July-September, 75cm. Drained soil in sun.
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.
The classic “black grass”. Ideal for tubs and containers as well as edging borders etc. Strappy black foliage and short spikes of mauve flowers followed by black, pearl-like, berries. Decent soil in shade or part shade.
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.
AGM. An impressive modern American selection makes clumps of bright green arching leaves and masses of upright dark reddish bottlebrush-like flowers to 75cm in autumn. Sun, good soil.
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 mat forming perennial of almost leafless stems producing masses of palest pink, near white, starry flowers from spring til autumn. Drained soil in sun or part shade. 30cm.
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 Clump forming Campanula relative with lax stems of greyish-green leaves and balloon-like buds opening to wide bells of pale pink 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. 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 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.
AGM A stunning and well behaved Golden Rod with purple flushed foliage, best in full sun. Open, elegant heads of long narrow branches covered in yellow flowers in late summer. 1.2m. Average to good soil.
AGM A selection from Ernst Pagels with larger bronze-gold panicles up to 50cm long on 2.5m tall stems. Rather more imposing than the species. Can reflower in autumn. Drained soil in sun.
