We have found 21 plants that meet your criteria.

butterfly bush (syn Buddleja Flower Power )
Buddleja × weyeriana 'Bicolor' butterfly bush (syn Buddleja Flower... Striking bi-coloured flowers £12.99 Buy
butterfly bush
Buddleja davidii 'Black Knight' butterfly bush Sumptuous deep purple flowers £8.99 Buy
butterfly bush
Buddleja lindleyana butterfly bush Ideal for training against a warm, sheltered wall £12.99 Buy
border phlox
Phlox paniculata L. 'Amethyst' border phlox Tall variety with violet flowers £7.99 Buy
perennial phlox
Phlox paniculata 'Windsor' perennial phlox The flowers have a heady scent £7.99 Buy
tulbaghia
Tulbaghia violacea tulbaghia A long-flowering, sun-loving perennial £7.99 Buy
verbena
Verbena bonariensis verbena Lilac-purple flowers £7.99 Buy
New
purple top
Verbena bonariensis purple top Lilac-purple flowers £4.99 Buy
verbena
Verbena bonariensis 'Lollipop' verbena Buy 1 for £6.99, or 3 for £15.97 and save £5 £6.99 Buy
verbena
Verbena bonariensis 'Lollipop' verbena A shorter cultivar of the much-loved V. bonariensis £8.99 Buy
wildflower plug plant collection
Wildflowers for a boggy meadow wildflower plug plant collection A collection of 104... £89.99 Buy
wildflower plug plant collection
Wildflowers for a shady meadow wildflower plug plant collection A collection of 104... £89.99 Buy
wildflower plug plant collection
Wildflowers for a stronger colour sunny meadow display wildflower plug plant collection A stronger colour collection... £89.99 Buy
wildflower plug plant collection
Wildflowers for a sunny meadow wildflower plug plant collection A collection of 104... £89.99 Buy
butterfly bush
Buddleja 'Buzz Lavender' (Buzz Series) butterfly bush The flowers are a magnet for butterflies £12.99 coming soon
butterfly bush
Buddleja 'Buzz Magenta' (Buzz Series) butterfly bush Lashings of summer colour £12.99 coming soon
clematis (group 3)
Clematis × triternata 'Rubromarginata' clematis (group 3) Delicious, marzipan-scented flowers £11.99 coming soon
New
pot pink
Dianthus Tickled Pink ('Devon PP 11') (Scent First Series) (PBR) pot pink A profusion of perfumed... £3.99 coming soon
coneflower
Echinacea 'Eccentric' coneflower The first colour-changing double £9.99 coming soon
border phlox
Phlox paniculata 'Franz Schubert' border phlox Wonderful, fragrant, lilac flowers £7.99 coming soon