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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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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'£3.50

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'£3.50

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'£3.50

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


Aster 'Little Carlow'

Aster 'Little Carlow'£4.50

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.

 

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 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 filix-mas 'Linearis Polydactyla'

Dryopteris filix-mas 'Linearis Polydactyla'£6.00

A splendid form of the native Male Fern with fronds that beome very finely divided and thread-like as the plant matures. Excellent deep green foliage for a shady corner, semi-evergreen. 90cm.


Eryngium giganteum

Eryngium giganteum£3.00

Miss Willmott's Ghost. Very pretty biennial with rosettes of paddle shaped leaves and strong upright stems of spiny silvery flowers in summer. Drained soil in sun. 60cm.


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.

 

Filipendula rubra 'Venusta'

Filipendula rubra 'Venusta'£5.00

AGM Clumps of large, dark green leaves and tall stems topped with fluffy pink flowers in summer. Good to moist soil in sun. 1.5m.


Galega x hartlandii 'Lady Wilson'

Galega x hartlandii 'Lady Wilson'£4.50

Pretty pink and white bicolor flowers on stems to 1m. Clumps of pinnate leaves below. Sterile so not a seeder but long lived and hardy. Ordinary soil in sun or part shade.


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 'Blogold' BLUE SUNRISE£4.50

Clumps of yellow foliage and sky blue flowers over a long period on this hybrid raised by Hans Kramer. Best in light shade or a more open position if not too hot, reasonable soil. 45cm. PBR.


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'£4.50

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.


Geranium 'Orion'

Geranium 'Orion'£4.00

Like 'Brookside' but with darker blue flowers, 5cm across. The stuff of myth! Average soil in sun, 70cm. Summer with good repeat and super foliage colour in autumn.


Geranium 'Sirak'

Geranium 'Sirak'£3.50

(Geranium gracile x Geranium ibericum)

A unique shade of luminous mauve pink all summer. Large delectable flowers on this recent hybrid which deserves a reasonable soil, not too dry. 40cm.


Geranium macrorrhizum 'Ingwersen's Variety'

Geranium macrorrhizum 'Ingwersen's Variety'£3.50

Useful, usually evergreen, groundcover with light rose-pink flowers from April. Will even work in dry shade with good soil preparation.

 

Geranium macrorrhizum 'Mytikas'£3.50

A recent introduction with very compact growth and masses of small deep pink flowers in late spring. Not really a groundcover but a spreading patch to 15cm high.

 

Geranium macrorrhizum 'White-Ness'

Geranium macrorrhizum 'White-Ness'£4.00

AGM Pure white flowers without the usual pink calyx. Introduced from Mount Olympus by Liverpool Botanic Garden. Shame Vits didn't have this for her "pale garden"! Deciduous.

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