Anthyllis vulneraria var. coccinea: Forms low mounds of frondy foliage with masses of scarlet, pea-like flowers.

Astilbe 'Montgomery': Large, upright panicles of cherry red flowers in summer over dark green ferny foliage. Prefers a moist soil. Hardy. Up to 60cm. [Collect Only]

Astrantia major 'Red' (Hattie's pincushion, Masterwort 'Red'): Dark red flowers held above strong green foliage. A seed raised variety so some variability. Repeat flowers readily if dead-headed. Hardy. Up to 90cm.

Astrantia major Gill Richardson Group (Hattie's pincushion, Masterwort 'Gill Richardson'): Superb variety with cherry red flowers held above strong green foliage. Repeat flowers readily if dead-headed. Hardy. Up to 90cm.

Crocosmia 'Hellfire': A tall variety with vibrant red flowers with a darker red thoat above strappy green leaves. Hardy. To 1.2m.

Crocosmia 'Lucifer': Swathes of brilliant scarlet flowers over bold strappy green foliage. Easy and trouble free as long as soil is not too wet. To 1.2m. Hardy. [Collect Only]

Dierama pulcherrimum 'Blackbird' (Angel's Fishing Rod): Arching bells of burgundy red flowers nodding over grassy foliage.

Lobelia cardinalis 'Queen Victoria' (Cardinal flower 'Queen Victoria'): Upright spikes of red leaves, topped with scarlet flowers. A perennial, but can be short lived. to 80cm. Hardy.

Lychnis chalcedonica (Maltese cross): Domes of bright scarlet flowers with four petals, hence its common name. Excellent for adding height and bright colour in summer borders

Monarda 'Gardenview Scarlet' (Bee Balm/Bergamot 'Gardenview Scarlet'): Whorls of bright red flowers held above aromatic foliage. Hardy. To 70cm.

Monarda 'Jacob Cline' (Bee Balm/Bergamot 'Jacob Cline'): Whorls of the brightest imaginable red flowers over bright green aromatic foliage. Hardy. Up to 75cm.

Monarda 'Oneida' (Bee Balm/Bergamot 'Oneida'): Whorls of bright red flowers held above aromatic foliage.

Penstemon 'Garnet' (Syn. Penstemon 'Andenken an Friedrich Hahn'): Wine-red tubular flowers with white throat markings and narrow leaves. Semi-evergreen in milder areas. Protect from hard frosts.

Penstemon 'Schoenholzeri': Brilliant scarlet tubular flowers, slender leaves.

Potentilla atrosanguinea (Cinquefoil): Bright scarlet flowers over silvery foliage. Great for stony or poor soils in full sun.To 20cm. Hardy.

Potentilla thurberi 'Monarch's Velvet' (Cinquefoil 'Monarch's Velvet'): Dark red velvety flowers with a darker eye held daintily above green, deeply divided foliage

Sanguisorba officinalis 'Crimson Queen': Tall form of Sanguisorba with airy stems and deep red-pink bobble-like flowers. Hardy. Up to 1.4m

Sanguisorba tenuifolia 'Purpurea': Tall dark-red purple bottle-brush flowers over fine, frondy foliage. Likes sun or dappled shade, not too dry. To 1.5m Hardy.