|Achillea "Rose Madder"|
Lovely soft red flowers keep their colour as they die. Compact.
|Achillea "Red Velvet"|
Large flat heads of rose-red flowers over finely divided leaves.
Heads of strong red flowers, fading as they mature.
Attractive feathery grey-green foliage. Flat heads of small, light yellow flowers.
|Achillea filipendulina "Gold Plate"|
Large, flat heads of golden-yellow flowers.
Dainty, nodding, bell-shaped white flowers amongst narrow grassy foliage.
|Aconitum napellus subsp. vulgare "Albidum"|
Dense spires of creamy white flowers.
|Aconitum x cammarum "Bicolor"|
Violet-blue and white flowers.
|Acorus gramineus "Ogon"|
Compact, tufted semi-evergreen perennial. Narrow leaves with creamy-yellow margins.
|Actaea simplex "Black Negligee"|
Dramatic, black foliage. Creamy-white bottlebrush flowers.
|Actaea simplex "Pink Spike"|
Dramatic perennial. Scented bottlebrush-like flowers emerge pale pink and darken with age.
|Agapanthus "Navy Blue"|
Large, dark navy blue flowerheads.
|Agastache "Summer Sunset"|
Warm orange flowers over a long season.
Blue-black spikes over aromatic leaves. One of the hardiest agastaches.
|Agastache mexicana "Red Fortune"|
Aromatic leaves. Deep purple-pink flowers. Hardy, unlike most agastaches.
|Ajuga reptans "Black Scallop"|
Evergreen perennial with glossy dark purple, almost-black leaves. Spikes of blue flowers.
South African bulb. Scented, bell-shaped yellow flowers.
Similar to hollyhocks but no rust! Lovely semi-double pale flowers with maroon stamens.
Pretty mini form of alchemilla mollis. Small, yellow-green flowers on reddish stems. Clump-forming.
|Allium albopilosum (syn cristophii)|
Large heads of starry, silvery-lilac flowers on stocky stems. Long-lasting and excellent dried. Foliage dies down before flowering.
|Allium hollandicum "Purple Sensation"|
Large round heads of deep purple flowers.
Large, spiky, pink-lilac flower heads. Dramatic.
Oval flowerheads open green, then turn to purple.
Umbels of fairly large, star-shaped rose-pink flowers.
|Alstroemeria "Sweet Laura"|
Compact, tuberous perennial with scented golden-yellow flowers, flushed with red.
|Alstroemeria psittacina "Royal Star"|
Branched clusters of dark red flowers over leaves with irregular cream edges.
|Amarine tubergenii "Zwanenburg"|
Spectacular, trumpet-shaped, dusky pink flowers. Needs short dry dormancy in summer to flower.
Funnel-shaped, fragrant pink flowers on each stem open before leaves appear.
|Anemone blanda (mixed)|
Hardy, herbaceous perennial. Delicate blue, pink or white flowers.
|Anemone multifida "Rubra"|
Rich rose-coloured, buttercup-like flowers with yellow stamens over ferny foliage.
Creamy flowers followed by attractive, woolly seed heads.
|Anemone x hybrida "Andrea Atkinson"|
Single, pure white flowers above dark leaves.
|Anemone x hybrida "Queen Charlotte"|
Large rose-pink, semi-double flowers.
|Anisodontea "El Royo"|
Sub-shrub from South Africa. Large, pink, hibiscus-shaped flowers with darker centres.
|Anthemis "Tinpenny Sparkle"|
Large creamy-white daises over grey-ish foliage. Ideal for cottage gardens or front of border.
Known as St Bernard's Lily. Clumps of narrow grey-green leaves. Long-lasting, starry white flowers.
|Anthriscus sylvestris "Ravenswing"|
Dark foliage and stems. Small, white, lacy flowers Can be short lived but self seeds. Select dark seedlings to grow on.
|Aquilegia vulgaris "Ruby Port"|
Fully double, deep maroon, nodding flowers on upright stems.
|Aquilegia vulgaris "William Guiness"|
Black and white single flowers.
|Artemesia lactiflora "Jim Russell"|
White flowers and attractive foliage on dark, arching stems.
|Artemesia ludoviciana "Valerie Finnis"|
Silver, aromatic foliage. Insignificant yellow flowers. Drought-resistant. Easy.
|Arthropodium candidum "Maculatum"|
Bulbous perennial from New Zealand. Speckled brown foliage. Tiny white flowers. Good in pots.
New Zealand perennial. Starry, white flowers. Drought-resistant.
Cream plumes on bronze stems over attractive, divided green-gold foliage.
Unusual flower heads of brilliant orange. Attractive to butterflies and bees.
Fragrant, yellow, star-shaped flowers on upright spikes. Evergreen leaves.
|Aster "Little Carlow"|
Masses of bright blue daisies in large sprays.
|Aster "Rose Queen"|
Rich pink flowers.
Masses of delicate heads of pale lilac-pink daisies on dark stems.
|Aster ageratoides "Asran"|
Masses of lavender-blue daisies with yellow eyes Bushy, upright form. Easy and reliable.
|Aster amellus "King George"|
Large, violet, daisy flowers.
Clusters of small white daisies on dark wiry stems. Easy.
|Aster frikartii "Monch"|
Sprays of large, long-lasting, lavender-blue flowers with yellow centres. No staking or mildew.
|Aster lateriflorus "Prince"|
Masses of tiny white flowers with pink centres on black stems and over dark foliage.
|Aster novae-angliae "Andenken an Alma Potschke"|
Cerise pink flowers.
|Aster novae-angliae "Barr's Pink"|
Attractive semi-double, bright rose-pink flowers with gold centres. Good for back of border.
|Aster novae-angliae "Purple Dome"|
Compact variety. Violet-purple flowers with yellow centres.
|Aster novae-angliae "Roter Stern"|
Purple-pink flowers. Low maintenance perennial for back of border.
|Aster novae-angliae "Evensong"|
Violet-purple flowers with yellow centres.
|Aster novae-angliae "Rose Williams"|
|Aster novae-angliae "'Lye End Beauty'"|
Strong stems bearing large heads of clear, bright lilac pink flowers over a long period.
|Aster novi-belgii "Beechwood Challenger"|
Upright purple-red sprays. Good for cutting.
|Aster novi-belgii "Neron"|
Upright aster with pink-red double flowers.
|Aster novi-belgii "Marie Ballard"|
Sprays of large, clear lavender-blue, double flowerheads.
|Aster novi-belgii "Winston S Churchill"|
Large heads of rich ruby red blooms.
|Aster novi-belgii "Blue Baby"|
Dwarf aster with compact habit. Sprays of bright blue flowers.
|Aster pyrenaeus "Lutetia"|
Loose mounds on graceful wiry stems smothered in large, pale lilac-blue daisies. Flowers last for weeks in the garden.
|Aster schreberi (see Eurybia schreberi)|
Dwarf variety. Graceful branching sprays of delicate shell-pink flowers.
Deciduous fern with silvery foliage and distinctive dark maroon mid-ribs. Colour best in spring.