We have found 22 plants that meet your criteria.

Achillea filipendulina 'Cloth of Gold' Yarrow Flat, plate-like yellow flowers on tall stems £5.99 Buy
Achillea 'Moonshine' Yarrow Lovely, large sulphur-yellow flowers £5.99 Buy
Price Pruned
Aquilegia chrysantha 'Yellow Queen' Granny's Bonnet Elegant lemon yellow flowers NOW £5.49 Buy
Price Pruned
Coreopsis verticillata 'Moonbeam' Tickseed Yellow, daisy-like flowers NOW £5.49 Buy
Digitalis ferruginea Rusty Foxglove Unusual variety of a garden favourite £5.99 Buy
Foeniculum vulgare 'Giant Bronze' Bronze Fennel Tall perennial with feathery, bronze leaves £4.99 Buy
Helenium 'Wyndley' Sneezeweed Lovely with ornamental grasses £5.99 Buy
Verbascum '(Cotswold Group) Gainsborough' Mullein Saucer-shaped, soft yellow flowers £5.99 Buy
Brachyglottis '(Dunedin Group) Sunshine' Senecio Yellow flowers and silver leaves £6.99 Buy
Iris foetidissima Stinking Gladwyn Bright orange berries. Useful for dry shade £5.99 Buy
Iris 'pseudacorus' Yellow Flag Glistening golden flowers for the pondside £4.99 Buy
Lonicera periclymenum 'Belgica' Early Dutch Honeysuckle Yellow flowers, streaked with red. Early flowering £7.99 Buy
Lonicera periclymenum 'Heaven Scent' English Wild Honeysuckle Fantastically fragrant white flowers and bright red berries £7.99 Buy
Lonicera periclymenum 'Serotina' Late Dutch Honeysuckle Late flowering, with showy white and purple blooms £7.99 Buy
Price Pruned
Primula veris Cowslip Our native yellow cowslip. NOW £4.99 Buy
Sambucus racemosa 'Sutherland Gold' Elder Fabulous golden foliage £8.49 Buy
Verbascum '(Cotswold Group) Cotswold Queen' Mullein Saucer-shaped soft-yellow flowers £5.99 Buy
Wildflowers for a 'boggy meadow' Wildflower Plug Plant Collection A collection of 104... £79.99 Buy
Wildflowers for a 'shady meadow' Wildflower Plug Plant Collection A collection of 104... £79.99 Buy
Wildflowers for a 'stronger colour sunny meadow display' Wildflower Plug Plant Collection A stronger colour collection... £79.99 Buy