A to Z of plants
Achillea

Achillea ‘Carmina Burana’
Flat heads of deep wine-mulberry coloured flowers, from midsummer. Prefers well-drained soil.
60 cm
Achillea

Achillea ‘Hella Glashoff’
Flat heads of buttery-cream flowers for weeks, from midsummer. Prefers a well-drained position.
40 cm
Achillea

Achillea ‘King Alfred’
A low mound of silvery-green foliage with flat heads of primrose-yellow flowers, during the summer.
15 cm
Achillea

Achillea ‘Terracotta’
Strong, upright stems of flat-headed soft terracotta coloured flowers, which age to palest yellow, for weeks, from midsummer. Prefers well-drained soil.
70 cm
Adenophora

Adenophora Liliifolia
An erect perennial with narrow green leaves. Pendent bell-shaped, fragrant, pale to mid-blue flowers from midsummer.
40 cm
Adonis

Adonis Amurensis
Rich yellow flowers nestle in a crown of feathery leaves, during early spring. A slow growing woodland plant.
20 cm
Aethionema

Aethionema ‘Warley Ruber’
Pretty rich pink flowers, over glaucous foliage, in late spring and summer. Prefers well-drained soil.
12 cm
Agapanthus

Agapanthus ‘Blue Velvet’
Round heads of good, strong violet blue flowers from mid to late summer. Ready mid May.
100 cm
Agapanthus

Agapanthus ‘Lilliput’
Round heads of deep blue flowers, in July. A nicely compact plant.
30 cm
Agapanthus

Agapanthus ‘Mood Indigo’
Round heads of purple flowers with very dark purple buds, from mid to late summer.
80 cm
Agapanthus

Agapanthus ‘Nikki’
Sturdy stems of round-headed dark blue flowers, for weeks, in summer. Ready mid May.
100 cm
Agapanthus

Agapanthus ‘Queen Mum’
A showy agapanthus, with large round heads of bicolour flowers, blue with palest blue, almost white centres, in July and August. When in flower, sells on sight! We suspect may be less hardy than the others we grow. (PBR)
120 cm
Agapanthus

Agapanthus ‘Streamline’
Large heads of pale blue flowers in summer, on shortish stems. Consistently good flowering.
30 cm
Agapanthus

Agapanthus White
We do not know the correct name. Seems a good hardy Agapanthus with white flowers in late summer.
75 cm
Agastache

Agastache ‘Blackadder’
Aromatic foliage, with spikes of violet-blue flowers for weeks, from July.
70 cm
Alchemilla

Alchemilla Erythropoda
Like a miniature ‘Lady’s Mantle’, sprays of tiny yellow flowers in summer, which age coppery. Seeds itself gently about.
15 cm
Allium

Allium ‘Ambassador’
Very dense heads of violet-pink flowers on tall sturdy stems in May and June, a showy allium. (PBR)
100 cm
Allium

Allium Cernuum
A more herbaceous clump-forming Allium with nodding umbels of dark pink flowers during summer. Does well in a sunny, dry situation. Self-seeds.
40 cm
Allium

Allium Cernuum ‘White Dwarf’
A more herbaceous, clump forming Allium with nodding umbels of white flowers during summer Prefers a sunny, dry situation.
30 cm
Allium

Allium Cristophii (syn. A. Albopilosum)
Giant heads of starry purple-pink flowers on fairly short stems in summer very dramatic! Slow to increase.
30 cm
Allium

Allium ‘Globemaster’
Wonderfully large heads of violet-purple flowers on tall stems, in early summer. Lasts for weeks, as the new flowers cover the old ones when they go over. Clumps up well.
100 cm
Allium

Allium Hollandicum ‘Purple Sensation’ (syn. A. Aflatunense 'Purple Sensation')
Round heads of deep violet-maroon flowers on tall stems, in early summer, good for drying. Self-seeds with us.
100 cm
Allium

Allium ‘Mont Blanc’
Upright stems topped by round balls of creamy white flowers, in May and June.
130 cm
Allium

Allium Roseum
Rosy Garlic. Nodding heads of soft pink flowers in early summer. Forms new bulbils on top of the flowers. Fairly invasive in a nice kind of way!
30 cm
Allium

Allium senescens ssp. glaucum
Slightly twisted, glaucous linear leaves, with rounded heads of lilac-pink flowers in late summer.
20 cm
Allium

Allium Sphaerocephalon
Deep crimson-purple, egg-shaped flowers, from mid to late summer.
75 cm
Allium

Allium virgunculae
A real gem for late colour in the rockery.Thin grassy leaves with slightly nodding heads of lavender pink flowers in October and November. Prefers well-drained soil.
12 cm
Alstroemeria

Alstroemeria Psittacina
Peruvian Lily. Upright stems, with green and dark red tubular flowers, for weeks in midsummer. Prefers a fairly sheltered situation, in good soil. The sap can be a skin irritant.
100 cm
Alyssum

Alyssum spinosum ‘Roseum’ (syn. Ptilotrichon spinosum 'Roseum')
A slightly prickly mound of small silver foliage, covered in masses of tiny pink flowers in summer. Prefers well-drained soil.
10 cm
Amsonia

Amsonia orientalis (syn. Rhazya orientalis)
Similar looking to an herbaceous Phlox, with ice-blue flowers in midsummer. Forms an attractive clump, does seem to run a bit.
60 cm