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RHS Award of Garden Merit

RHS Award of Garden Merit logo

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.

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Achillea 'Martina'

Achillea 'Martina'£3.00

Fantastic pale yellow flowers on strong stems, non-fading. Flowers all summer and then has good seedheads for the winter. Drained soil in sun. 75cm.

 

Alchemilla erythropoda

Alchemilla erythropoda£3.50

Low growing clumps/patches of blue/green leaves with silvery margins. Short stems bearing clusters of apple green flowers which turn rusty-red from spring. 20cm.

 

Anemanthele lessoniana

Anemanthele lessoniana£4.00

syn. Stipa arundinacea - New Zealand Wind Grass. Green foliage tinted orange and red in late summer and autumn. Wispy flowers form a cloud above the foliage in late summer. 1m. Not dry.

 

Anemone nemorosa 'Robinsoniana'

Anemone nemorosa 'Robinsoniana'£3.00

Masses of large flowers of a soft, pale blue on this Wood Anemone. Ideal for ordinary soil in shade. 15cm.


Anemone nemorosa 'Vestal'

Anemone nemorosa 'Vestal'£3.00

Popular form of Wood Anemone for its bright white flowers with a ruff of bright white petalloid stamens giving a near double look. Low growing spring flower for shade and ordinary soil. 15cm.


Anemone nemorosa 'Virescens'

Anemone nemorosa 'Virescens'£3.00

AGM Fantastic heads of finely cut green bracts and no petals. 25cm.


Asplenium trichomanes

Asplenium trichomanes£3.50

AGM Small clumps of maidenhair like fronds with the distinct black rachis and pale green pinnae. Ideal for the shady rock garden as it only grows to 20cm. Not too dry.


Aster 'Little Carlow'

Aster 'Little Carlow'£3.50

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.


Aster amellus 'Veilchenkönigin'

Aster amellus 'Veilchenkönigin'£4.00

Glistening purple flowers on leafy stems to 45cm. Clump forming, best in a drained soil in full sun. Flowers late summer to autumn.


Astrantia major 'Sunningdale Variegated'

Astrantia major 'Sunningdale Variegated'£5.00

A good creamy edge to new foliage often extends to more than half the leaf. Typical greenish white bracted flowers to 60cm. Good soil in light shade.

 

Carex 'Evergold'

Carex 'Evergold'£3.00

Listed under both C. hachijoensis and C. oshimensis this plant has a rich green foliage broadly centred creamy yellow. Clump forming to 20cm high and 40cm across. Not dry soil.


Carex buchananii

Carex buchananii£3.50

Stiffly upright when young, becoming more arching with age. Narrow rich reddish brown leaves to 60cm. Does best in sun, average to moist soil.

 

Cortaderia selloana 'Patagonia'

Cortaderia selloana 'Patagonia'£4.50

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.

 

Dryopteris affinis 'Cristata'

Dryopteris affinis 'Cristata'£4.50

The King. A very popular form with multiply divided ends to the pinnae - cristate - giving a ruffled look to the fronds. Rich green clumps to 75cm. Shade, even fairly dry.

 

Dryopteris erythrosora

Dryopteris erythrosora£4.00

The Autumn Fern with its perpetual autumn colours. Largish fronds of a paleish green are flushed with bronze, orange and yellow. Easy and colourful. 60cm. Shade, decent soil.


Dryopteris wallichiana

Dryopteris wallichiana£4.00

AGM A stunning semi-evergreen fern with deep green fronds on dark, blackish stems. Easy in most reasonable soils in shade. 60cm.

 

Eupatorium maculatum 'Purple Bush'£3.50

A new shorter growing selection from Piet Oudolf. Solid clumps of purple stained stems and rich green leaves topped with chunky heads of dusky pink flowers. 1.5m. Good soil in sun.


Eupatorium maculatum 'Riesenschirm'

Eupatorium maculatum 'Riesenschirm'£4.50

A large herbaceous perennial with chunky green foliage on deep purple stems. Heads of purple/pink flowers in late summer. 1.2m. Average to good soil in sun.

 

Eupatorium maculatum Atropurpureum Group

Eupatorium maculatum Atropurpureum Group£4.00

Upright stems of purple flushed leaves topped with heads of purple-pink flowers to 2m. Good winter seedheads.

 

Festuca glauca 'Blaufuchs'

Festuca glauca 'Blaufuchs'£3.00

Neat clumps of blue-grey foliage to 15cm, thin strawy flowers to 25cm. Best in full sun in well drained soil.

 

Geranium 'Ann Folkard'

Geranium 'Ann Folkard'£4.00

(procurrens x psilostemon)

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.

 

Geranium 'Blue Cloud'

Geranium 'Blue Cloud'£3.50

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.

 

Geranium 'Brookside'

Geranium 'Brookside'£3.50

(pratense x clarkei ‘Kashmir Purple’)

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 'Ivan'

Geranium 'Ivan'£3.50

(Geranium psilostemon x (x oxonianum)?)

Excellent Geranium psilostemon hybrid with large, broad-petalled soft magenta flowers, dark-centred. Reasonable soil in sun, summer. 45cm.

 

Geranium 'Mavis Simpson'

Geranium 'Mavis Simpson'£3.50

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.

 
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