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.
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 excellent narrow leafed variety which will produce a tight clump of upright stems topped with golden pink flowers in late summer and autumn. Good winter effect. 1.4m. Average soil in full sun.
A fine older variety from Ernst Pagels. Upright columns of narrow foliage topped with masses of purplish-pink flowers that fade to bright silver seedheads. 1.8m Decent soil in sun.
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.
TENDER AGM SCENTED One of the best known scented types with deeply divided leaves and heads of smallish pink flowers. The main reason for growing is the scent and flavour of the foliage. 40cm.
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.
AGM An excellent hardy form with spires of medium sized flowers in a blend of blue, purple and white. Deadhead stems as they finish and cut back hard in spring. 60cm. Drained soil in full sun.
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 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.
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 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 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.
AGM An excellent clear blue form producing many spikes of flowers from May until midsummer and then sporadically later. Can be cut back after the first flush to promote more. Drained soil in sun. 40cm.
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.
Quite unlike the common Goldenrods, this low growing, bushy plant is topped with sprays of fluffy lemon yellow flowers in summer and autumn. Ordinary soil in sun. 60cm.
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.
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.
A delightful woodlander with upright stems topped with drooping clusters of showy yellow flowers in spring. For good, leafy soil that does not dry out too much in shade. 60cm.
