Leucanthemum x superbum 'Wirral Supreme':
Tall form of Shasta daisy with white flowers and multiple shorter petals around the golden centre, making an attractive frilly effect. Hardy. Up to 1.5m.
Liatris spicata 'Alba':
Spikes of white flowers in mid to late summer. Very useful vertical accent. Bees adore it. To 80cm. Hardy
Elegant spikes of golden yellow flowers on black stems above very deeply divided green foliage.