Achillea 'Martina' (Yarrow 'Martina'): A superb variety with long lasting lemon yellow flowerheads, fading slowly to cream. Ferny green foliage. Hardy. To 75cm [Collect Only]

Achillea filipendulina 'Gold Plate' (Yarrow 'Gold Plate'): Statuesque achillea with huge, flat gold flower heads above upright ferny foliage. A statement plant for dry, sunny borders. Hardy. To 1m.

Agastache rugosa 'Liquorice Blue' (Korean mint 'Liquorice Blue'): Spikes of warm blue lipped flowers from late June onwards. Very attractive to bees. Aromatic foliage. To 1.5m. Hardy in light soils. [Collect Only]

Ageratina altissima 'Chocolate' (Snakeroot 'Chocolate'): An attractive perennial with leaves tinged with chocolate brown and delicate white flowers, much loved by bees and butterflies. Hardy. Up to 1m. [Collect Only]

Aster macrophyllus 'Twilight' (Syn. Eurybia x herveyi): Lavender-blue flowers with a yellow centre in late summer. Mildew-resistant foliage. An earlier flowering variety. Height to 1m.

Calamagrostis brachytricha (Korean feather reed grass): Arching, plump spikes of silvery purplish flowerheads turning golden brown in winter. [Collect Only]

Ceratostigma plumbaginoides (Plumbago, Hardy plumbago, dwarf plumbago): Brilliant blue flowers in later summer over foliage which turns redder as winter approaches. [Collect Only]

Cichorium intybus (Wild chicory): Beautiful cornflower-blue flowers held on tall stems in late summer. May need support. Hardy. Up to 2m.

Clematis integrifolia: Non-climbing form of Clematis with small blue bell shaped flowers. Flowers on current seasons wood in late summer. Hardy. Up to 1m.

Crocosmia crocosmiiflora 'Red King': Sprays of vibrant red flowers with yellow centres, over bright green strappy foliage in late summer. Hardy. Up to 70cm. [Collect Only]

Crocosmia x crocosmiiflora 'Citronella': Bright sunny yellow funnel shaped flowers in late summer with sword shaped green foliage. A compact variety. Hardy. Up to 60cm. [Collect Only]

Echinacea purpurea (Coneflower): Large rosy-purple daisy-like flowers with a large brown central cone. Very attractive to bees and butterflies. Long flowering season [Collect Only]

Echinacea purpurea 'Green Twister' (Coneflower 'Green Twister'): A new variety with a unusual mix of purple and lime green flowers with upturned petals and a central dark cone. Hardy. Up to 60cm. [Collect Only]

Echinacea purpurea 'Magnus Superior' (Coneflower 'Magnus Superior'): Superb form with tall stems of pink daisy flowers with a central brown cone. Prefers full sun and good drainage. Hardy. Up to 1m.

Echinacea purpurea 'Magnus' (Coneflower 'Magnus'): A reliable cultivar with large pink daisy flowers with a central brown cone. Prefers full sun and good drainage.Hardy. Up to 90cm [Collect Only]

Echinacea purpurea 'Red Knee High' (PBR) (Coneflower 'Red Knee High'): Large dark red daisy flowers in late summer. A more compact form. To 45cm. Hardy in light soils.

Echinacea purpurea 'Rubinstern' (Coneflower 'Rubinstern'): Large pink flowers with a big golden central cone in late summer [Collect Only]

Echinacea purpurea 'Virgin' (Coneflower 'Virgin'): A very good pure white form with central golden cone. [Collect Only]

Erigeron karvinskianus (Fleabane): That pretty little daisy you see growing in the cracks in paving and walls in late summer....

Eryngium x zabelii 'Big Blue (Sea Holly 'Big Blue): Large electric-blue thimble-shaped flowers with a spiky collar and silver-green foliage. Long flowering and bee-friendly. Hardy. Up to 75cm

Eupatorium dubium 'Baby Joe' (PBR) (Joe Pye-weed 'Baby Joe'): A compact form of Joe Pye-weed with large heads of purplish red flowers which are a magnet for bees and butterflies. Hardy. Up to 75cm. [Collect Only]

Eupatorium maculatum 'Riesenschirm' (Joe Pye Weed 'Riesenschirm'): Even taller than the species and a dramatic plant with huge heads of purplish pink flowers in late summer. Hardy. To 2.5m. [Collect Only]

Foeniculum vulgare 'Purpureum' (Bronze fennel): Finely divided, aniseed scented, bronze-purple foliage, followed by tall yellow umbel flower heads. Attractive to bees. Hardy. Up to 1.8m. [Collect Only]

Gaura lindheimeri Rosyjane = 'Harrosy' (PBR) (Gaura 'Rosyjane'): Airy sprays of pink flowers with a white petal centre. Perennial, but dislikes winter wet and doesn't thrive outdoors in cold areas. To 80cm.

Geranium wlassovianum: Warm purple flowers over attractive velvety foliage. Excellent autumn foliage colour.

Helianthus 'Lemon Queen' (Perennial sunflower): Strong and tall perennial sunflower with pale yellow flowers. Good for cut-flowers. Late summer colour. Hardy. Up to 2m. [Collect Only]

Helianthus 'Monarch': A perennial sunflower with tall, semi-double bright yellow flowers. Prefers a sunny spot. Flowering late summer. Hardy. Up to 2.5m. [Collect Only]

Helianthus salicifolius (Willow-leaved sunflower): Tall, mobile stems with fine, willow-like leaves - makes a fine foliage feature. Yellow flowers in autumn [Collect Only]

Hesperantha coccinea 'Rosea' (Kaffir Lily. Syn. Schizostylis coccinea): Pale pink flowers on slender stems in late summer

Kniphofia 'Drummore Apricot' (Red Hot Poker 'Drummore Apricot'): Tall spikes of apricot flowers fading to yellow. Strappy green foliage. Strong vertical statement in the summer border. Hardy. Up to 75cm. [Collect Only]

Kniphofia 'Nobilis' (Red hot poker 'Nobilis'): Tall, heavy spikes of orange flowers on stiff stems in late summer. A bold statement in open, dry, sunny areas [Collect Only]

Kniphofia 'Tawny King' (Red hot poker 'Tawny King'): Tall, hefty spikes of creamy orange flowers on bronze stems in mid-late summer. Superb in sunny, dry borders. [Collect Only]

Kniphofia 'Timothy' (Red hot poker 'Timothy'): Tall spikes of creamy orange flowers on bronze stems in mid-late summer. Superb in sunny, dry borders. To 1.2m. Hardy [Collect Only]

Liatris spicata 'Alba': Spikes of white flowers in mid to late summer. Very useful vertical accent. Bees adore it. To 80cm. Hardy [Collect Only]

Panicum virgatum 'Heavy Metal' (Switch grass 'Heavy Metal'): Deciduous clump-forming grass with strappy blue-green leaves which turn a to purple/red, with clouds of airy flowers flushed purple. Hardy. Up to 1.5m

Panicum virgatum 'Shenandoah' (Switch grass 'Shenandoah'): Deciduous clump-forming grass with strappy green leaves turning purple/red in autumn, airy panicles of flowers flushed purple. Hardy. Up to 1.1m. [Collect Only]

Panicum virgatum 'Squaw' (Switch grass 'Squaw'): Deciduous grass with strappy green leaves which turn a purple red in autumn, with airy panicles of flowers flushed pink. Hardy. Up to 1m.

Persicaria amplexicaulis (Red bistort): Spikes of reddish pink flowers from July to November. Robust plant ideal for filling awkward corners. Easy and reliable. [Collect Only]

Persicaria amplexicaulis 'Blackfield' (PBR) (Red bistort 'Blackfield'): New variety with fine spikes of burgundy flowers in late summer. Easy and reliable. To 60cm. Hardy [Collect Only]

Persicaria amplexicaulis 'Fat Domino' (PBR) (Red bistort 'Fat Domino'): A cracking new variety with plump, dark rose-red flower spikes which last for ages. Robust and hardy. Up to 90cm [Collect Only]

Persicaria amplexicaulis 'Firetail' (Red Bistort 'Firetail'): Tall perennial with spikes of bright pink flowers in late summer. Large oval pointed leaves. A robust plant. Hardy. Up to 1.2m. [Collect Only]

Persicaria virginiana var. filiformis: Attractive foliage, bright green with bronze chevron markings. Sprays of tiny red flowers in later summer.

Physostegia virginiana (Obedient plant): Spires of light pinkish purple flowers on slowly spiralling stems. [Collect Only]

Rudbeckia fulgida var. deamii: Classic garden perennial flowering in mid-late summer with bright gold daisy flowers with black centres. Hardy. Up to 60cm.

Rudbeckia fulgida var. sullivantii 'Goldsturm': Large gold flowers with a chocolate eye produced in profusion from late summer well into autumn. Hardy. Up to 60cm. [Collect Only]

Rudbeckia maxima (Great Coneflower): Very tall, upright Rudbeckia with large, bright yellow cones with black eyes in late summer

Rudbeckia subtomentosa 'Little Henry' (PBR): Yellow quilled flowers with chocolate brown centres in late summer. Compact variety with a delightful vanilla scent. Hardy. Up to 90cm. [Collect Only]

Salvia x jamensis 'Nachtvlinder' (Sage 'Nachtvlinder'): Regal purple flowers on upright stems throughout late summer into autumn.

Sanguisorba 'Blackthorn' (Burnet 'Blackthorn'): Upright spikes of soft pink flowers in late summer and autumn. Hardy. 1-2-1.5m. [Collect Only]

Sanguisorba 'Cangshan Cranberry' (Burnet 'Cangshan Cranberry'): Very tall reddish stems of burgundy-red bobbly flowers in late summer over blue-green leaves. Prefers moist soil. Hardy. Up to 2m. [Collect Only]

Sanguisorba 'Chocolate Tip': Spikes of burgundy-red bobble-like flowers appear in late summer over green leaves tinged with brown. Hardy. Up to 1m. [Collect Only]

Sanguisorba 'Little Angel' (Burnet 'Little Angel'): Brand new variety. Compact plant with maroon button flowers and variegated foliage. Hardy. Up to 30cm. Hardy.

Sanguisorba 'Pink Tanna' (Burnet 'Pink Tanna'): Fluffy Pink flower bobbles mid-late summer over attractive fern-like foliage. Good in damp soil, sun or shade. Hardy. Up to 1m.

Sanguisorba 'Proud Mary' (Burnet 'Proud Mary'): Burgundy-red bobbly flowers appear in late summer over crinkled blue-green leaves. Long flowering. Hardy. Up to 60cm. [Collect Only]

Sanguisorba 'Tanna' (Burnet 'Tanna'): Spikes of burgundy-red bobbly flowers appear in late summer over crinkled blue-green leaves. Height to 50cm. Hardy.

Sanguisorba canadensis (White burnet): Bottle-brush white flowers in late-summer above green pinnate foliage. Very tactile plant. Long flowering. Hardy. Up to 2m [Collect Only]

Sanguisorba menziesii (Menzies' burnet): Long maroon spikes in late summer over clumps of frondy, grey green foliage. To 60cm. Fully hardy

Sanguisorba officinalis 'Red Thunder' (Burnet 'Red Thunder'): Stems of dark-red bobble-like flowers above attractive divided foliage. Up to 1.2m. [Collect Only]

Sedum telephium 'Purple Emperor' (Syn. Hylotelephium telephium 'Purple Emperor'): A fine sedum with purple, almost metallic fleshy leaves and flattish heads of purple-red flowers in late summer.

Sporobolus heterolepsis (prairie dropseed): Fine deciduous grass with green foliage in summer turning golden. Graceful flower heads in late summer. Needs sunny spot in well-drained soil. Hardy. Up to 1m.

Tritonia disticha subsp. rubrolucens: Masses of rose pink trumpet-like flowers in very late summer/autumn over sword like foliage [Collect Only]

Verbascum chaixii (Nettle-leaved mullein): Tall spires of bright white or yellow flowers with a purple centre. Above a rosette of semi-evergreen grey-green leaves. Hardy. Up to 90cm.

Veronicastrum virginicum 'Apollo' (Culver's Root 'Apollo'): Very long, narrow spires of pale purple blue flowers above whorls of narrow, dark green, serrated leaves. To 1.5m. Hardy. [Collect Only]