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 'Moonshine' (Yarrow 'Moonshine'): Very popular variety with large bright yellow/gold flowerheads above silvery green ferny foliage. Height to 80cm [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. [Collect Only]

Alchemilla mollis (Lady's mantle): Bright green soft leaves and a froth of acid yellow/green flowers in summer. Very easy for ground cover

Anthemis tinctoria 'E.C. Buxton' (Dyer's chamomile 'E.C. Buxton'): Masses of creamy lemon yellow flowers with gold eye over finely divided foliage. To 50cm. Hardy. [Collect Only]

Anthemis tinctoria 'Sauce Hollandaise' (Dyer's chamomile 'Sauce Hollandaise'): Lemon daisy flowers with a deep yellow centre. Excellent in sunny, dryish spots. Doesn't like wet soils. Hardy. Up to 50cm. [Collect Only]

Aquilegia McKana group (Granny's bonnet. Columbine): Large trumpet flowers with long spurs in lemon yellow and other pastel colours in late spring. Attractive to bees. Hardy. Up to 80cm.

Centaurea macrocephala (Giant knapweed): Huge, bright yellow almost fluffy flowers in mid-summer follow attractive papery buds. Attractive to bees. Height to 1.5m. Hardy. [Collect Only]

Crocosmia 'Paul's Best Yellow': Arching sprays of golden yellow flowers in late summer. A vigorous grower. Fully hardy in well drained soils. To 1m [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.

Epimedium perralderianum (Barrenwort): Tiny lemon yellow flowers held on fine wires above attractive, marbled foliage. Very good in shade, even dry shade

Epimedium pinnatum subsp colchicum (Barrenwort): Attractive, evergreen, spiny, green leaves with yellow flowers held above the foliage. Shady ground cover. Hardy. Up to 30cm. AGM.

Epimedium x perralchicum 'Frohnleiten' (Barrenwort 'Frohnleiten'): Heart-shaped leaves are bronze-tinted, wiry stems of yellow, star-like flowers in spring. Shady ground cover. Hardy. Up to 30cm.

Geum 'Georgenberg' (Avens 'Georgenburg'): Gold flowers held atop reddish stems in early to mid-summer. To 30cm. Hardy

Geum 'Stacey's Sunrise' (Avens 'Stacey's Sunrise'): Pale yellow flowers on compact stems above rosettes of rounded hairy leaves. Semi-evergreen. Long flowering. Hardy. Up to 30cm.

Helenium 'Kanaria' (Sneezeweed 'Kanaria'): Masses of clear lemon yellow flowers with swept back petals and central mustardy-gold dome. [Collect Only]

Helenium 'Wyndley' (Sneezeweed 'Wyndley'): Tall stems of yellow daisy-like flowers with brown central cone. Superb late summer perennial, attractive to bees. Hardy. Up to 90cm. [Collect Only]

Helianthus 'Loddon Gold' (Perennial sunflower 'Loddon Gold'): Tall, vibrant fully double, yellow flowers. Large flower heads up to 12cm width. Prefers a sunny spot. [Collect Only]

Hemerocallis 'Corky' (Daylily 'Corky'): Slender yellow trumpets with mahogany stripe on back. Flowers held high on black stems above fine foliage. Superb plant. To 60cm. Hardy

Hemerocallis 'Happy Returns' (Daylily 'Happy Returns'): Compact daylily with cheery lemon yellow flowers. Very free flowering, ideal for a sunny spot. To 40cm. Hardy. [Collect Only]

Hemerocallis 'Marion Vaughn' (Day Lily 'Marion Vaughn'): Large, creamy lemon flowers over a long period in mid-summer. Height to 80cm. Hardy. [Collect Only]

Hemerocallis 'Stella de Oro' (Day Lily 'Stella de Oro'): Pale yellow fragrant flowers with a darker yellow throat. Grass-like green foliage. Hardy. Up to 50cm. [Collect Only]

Kniphofia 'Bees Lemon' (Red hot poker 'Bees Lemon'): Short lemony green flower spikes over slender foliage. To 90cm. Hardy. [Collect Only]

Kniphofia 'Dorset Sentry' (Red hot poker 'Dorset Sentry'): Bold spikes of yellow flowers from green beds on sturdy bronze stems. To 1.2m Hardy. [Collect Only]

Oenothera macrocarpa (Missouri evening primrose): Huge trumpet shaped yellow flowers through mid-summer on a low, spreading plant. [Collect Only]

Paeonia mlokosewitschii (Peony 'Molly The Witch'): A truly lovely herbaceous peony with pale lemon yellow bowl-shaped flowers, with golden yellow stamens. Hardy. To 60cm. [Collect Only]

Paeonia wittmanniana: A delightful herbaceous peony with pale pink almost white bowl-shaped flowers with a yellow centre and attractive foliage. Hardy. Up to 1m. [Collect Only]

Phlomis russeliana (Turkish sage): Whorls of lemon yellow flowers rise above mats of grey-green rough leaves. Hardy. To 50cm.

Potentilla 'Esta Ann' (Cinquefoil 'Esta Ann'): Vibrant yellow flowers with a red centre held well above a mound of dark green strawberry-like foliage. Hardy. Up to 40cm.

Primula elatior (Oxslip): Pale yellow, primrose colour flowers in clusters on gently arching stems. [Collect Only]

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.

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]

Sisyrinchium striatum 'Aunt May': Open fans of strappy variegated iris-like leaves topped with lemon yellow flowers in summer. Up to 60cm. [Collect Only]

Trifolium ochroleucon (Sulphur Clover): Spikes of creamy yellow clover-like flowers above three-lobed foliage. Re-flowers if cut back. Good for bees. Hardy. Up to 50cm. [Collect Only]

Trollius chinensis 'Golden Queen' (Globeflower 'Golden Queen'): Glowing gold cup-shaped flowers with a very prominent central boss of gold anthers. Really stunning.

Trollius x cultorum 'Lemon Queen' (Globeflower 'Lemon Queen'): A clump-forming perennial with glossy deeply divided leaves. Pale yellow flowers in late spring and early summer. Hardy. Up to 60cm.