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.

Coreopsis verticillata 'Grandiflora' (Tickseed 'Grandiflora'): Compact variety with bright and cheery golden yellow daisy-like flowers. Held on wiry stems. Hardy. Up to 60cm.

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.

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 '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.

Leucanthemum x superbum 'Banana Cream' (Shasta Daisy 'Banana Cream'): A more compact form of the Shasta daisy, with pale yellow daisy flowers, fading to cream. Dark green foliage. Hardy. Up to 45cm.

Leucanthemum x superbum 'Goldfinch' (PBR) (Shasta Daisy 'Goldfinch'): Semi-double creamy yellow flowers which fade slowly to ivory white

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.

Sisyrinchium californicum (Golden-eyed grass): Bright yellow star-shaped flowers and grass-like grey-green foliage. Good for scree beds and alpine troughs. Hardy. Up to 60cm.