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Luzula nivea
A slender, evergreen grass with hairy leaves, forming loose clumps, making a great ground cover plant throughout the year. In midsummer, it bears elegant clusters of small, white flowers which can self-seed freely, so to keep it in check, prompt deadheading is recommended.
Lysimachia CANDELA ('Innlyscand')
A compact and clump-forming perennial with broad, lance-shaped, dark-green leaves producing dense racemes of saucer-shaped, white flowers in summer.
Melissa officinalis
Lemon Balm. A bushy perennial with lemon-scented, oval green leaves with scalloped edges, producing spikes of creamy-white of pale purple flowers in summer.
Nepeta 'Six Hills Giant'
Spikes of lavender blue flowers throughout the summer above silvery aromatic leaves, makes this an attractive and robust catmint for the garden.
Nepeta cataria
A deciduous perennial with aromatic, greyish-green leaves with toothed margins, producing small white flowers spotted with violet in summer and autumn.
Nepeta grandiflora 'Summer Magic' PBR
A compact, upright perennial with strongly aromatic grey-green foliage producing dense clusters of tubular violet-blue flowers throughout summer and into autumn.
This plant may be received cut back but it will soon begin to put on new growth.
Nepeta racemosa 'Snowflake'
A deciduous perennial wth aromatic, greyish-green foliage producing spires of tubular white flowers in summer.
Nepeta racemosa 'Walker's Low'
A great form of catmint with aromatic, grey-green foliage and bearing clusters of blue flowers in summer which if cut back after flowering, will often reflower later.
Nepeta x faassenii 'Purrsian Blue'
A compact perennial, doubling its spread by its second year of growth. Greyish-green, toothed, aromatic leaves clothe the stems and densely-packed blue flowers with dark purple calyces are borne on upright spikes in summer and autumn.
Omphalodes verna 'Alba'
A strong-growing, semi-evergreen perennial forming a mat of heart-shaped, bright green, slightly hairy leaves with racemes of white flowers in spring.
Origanum vulgare 'Aureum'
A woody perennial with aromatic, bright glden-yellow foliage producing light pink tubular flowers in summer and autumn.
Origanum vulgare 'Compactum'
A bushy, woody-based perennial with aromatic green leaves producing loose sprays of tiny, pale pink flowers from summer into early autumn.
Osteospermum 'Tresco Purple'
A spreading, evergreen perennial with slightly toothed, green foliage, producing bright-purple, daisy-like flowers from early summer into autumn.
Oxalis adenophylla
A bulbous perennial forming a clump of unusual greyish-green leaves producing solitary, bright rosy-pink flowers in late spring.
Peltoboykinia watanabei
A clump-forming perennial with deeply-cut, toothed, glossy green leaves which are flushed red when young and producing clusters of small, bell-shaped, pale yellow to yellow-green flowers on upright stems in summer.
Penstemon 'Pensham Just Jayne' (Pensham Series)
Vivid cerise-purple flowers over a long period in summer and early autumn.
Penstemon 'Pensham Plum Jerkum' (Pensham Series)
A bushy, semi-evergreen perennial with green, lance-shaped leaves, producing racemes of small, tubular, purple flowers in summer and early autumn.
Penstemon 'Rich Ruby'
A tall, semi-evergreen perennial with narrow leaves, producing deep red, bell-shaped flowers from midsummer into autumn.
Penstemon Thorn
An upright perennial to 75cm tall, with narrow leaves and loose panicles of tubular white flowers, tinged with deep pink.
Persicaria microcephala 'Red Dragon' PBR
A vigorous, spreading, semi-evergreen perennial with attractive, purplish-green leaves and bearing rounded clusters of small, white flowers in summer and autumn.
Phormium 'Sundowner' (v)
Elegant, arching, strap-like, bronze-green leaves with pink-apricot margins.
Phormium 'Yellow Wave' (v)
A clump-forming, evergreen perennial with arching, strap-like leaves of golden yellow margined green.
Phormium colensoi 'Tricolor' (v)
A clump-forming, evergreen perennial with arching, sword-like leaves, striped green and creamy-yellow with a thin red margin.
Polemonium caeruleum
A lovely cottage garden favourite with bright green foliage from which emerge erect stems bearing lavender-blue flowers in midsummer. A short-lived perennial but it self-seeds freely.
Polemonium pauciflorum 'Sulphur Trumpets'
An unusual variety with drooping, trumpet-shaped yellow flowers tinged red in late spring and summer.
Primula japonica 'Alba' (Pf)
A semi-evergreen perennial forming a basal rosette of crinkled, light green leaves with stout stems in late spring and summer topped with whorls of white flowers with yellow centres.
Primula veris
A British native, this plant displays fragrant, deep yellow flowers in late spring on downy stems up to 20cm long.
Pseudodictamnus mediterraneus
A low-growing, dwarf sub-shrub with white-hairy, green foliage producing whorls of small pink flowers in late spring and summer.
Rudbeckia fulgida var. deamii
A clump-forming, herbaceous perennial with rough, dark green leaves and bearing golden yellow flowers with black centres from summer and into autumn.
Rudbeckia fulgida var. sullivantii 'Goldsturm'
A clump-forming herbaceous perennial with tall stems bearing golden yellow flowers with black centres in summer and into autumn.
Rudbeckia triloba 'Prairie Glow'
A tall perennial with bristly green foliage producing daisy-like, orange-red flowers tipped yellow in summer and into autumn.
Salvia 'Amistad' PBR
A tall, upright perennial with bright green, slender, aromatic leaves producing masses of large, deep purple, tubular flowers from summer into autumn.
This plant may be received cut back but it will soon begin to put on new growth.
Salvia 'Bleu Armor' PBR
A wonderful Salvia with vivid blue flowers from late spring and throughout summer into early autumn, with a compact, well-branched habit.
Salvia 'Blue Note' PBR
A bushy, woody perennial with aromatic green leaves, producing open racemes of hooded, velvety, deep blue-purple flowers in summer.
Salvia 'Blue Spire' (Pe)
An erect, small, deciduous, sub-shrub with white stems bearing aromatic foliage and plumy panicles of violet blue flowers in late summer and into autumn.
Salvia 'Hot Lips'
A bushy perennial with aromatic foliage producing stunning bright lipstick-red and white flowers throughout the summer and into autumn.
Salvia 'La Mancha'
A bushy, evergreen shrub to 75cm tall with aromatic, mid-green foliage.
The tubular flowers borne on upright stems from late spring into early autumn have a cream to pale yellow lower lip and a small, pink-tinged upper lip
Salvia 'Nachtvlinder'
An evergreen sub-shrub with aromatic leaves and producing open racemes of velvety reddish-purple flowers in summer and into autumn.
Salvia 'Violin Music' PBR
A bushy perennial with aromatic leaves, producing slender racemes of small, violet-blue flowers from summer into autumn.
Salvia CHERRY LIPS ('Dysceri')
A bushy, evergreen perennial with aromatic foliage producing flowers opening reddish pink then becoming pink and white as they mature.
Salvia nemorosa 'Caradonna'
A wonderful cultivar of ornamental sage with erect stems bearing masses of small, violet-blue flowers throughout summer and into autumn.
Salvia nemorosa 'Rose Queen'
Clusters of deep pink buds opening to pale pink flowers in upright spikes in summer with aromatic foliage.
Salvia nemorosa CARADONNA PINK INSPIRATION ('Tucarink')
Slender, upright racemes of whorled, pink flowers in summer above, aromatic, wrinkled, dark grey-green foliage.
Salvia x jamensis BELLE DE LOIRE ('Barsabel')
An upright perennial with aromatic foliage producing long spikes of bicoloures orange and yellow flowers right through from spring into autumn. The flower fade to creamy pink as the temperature drops towards the autumn.
Sanguisorba 'Purple Tails'
A vigorous, clump-forming deciduous herbaceous perennial with dark green toothed leaves, and upright long, slim spikes of pink, fluffy, droopy bottlebrush flowers, opening from purple buds, which appear from mid-summer to autumn
Sedum sediforme
A clump-forming, succulent, evergreen perennial with blue-green foliage and producing rounded clusters of pale yellow flowers in summer.
Silene dioica
A mat-forming, semi-evergreen perennial often found growing wild, with ovate leaves and small clusters of purplish-pink flowers from summer into autumn.