Penstemon 'Pensham Laura':
White flowers with bright lipstick pink edges to the petals. Very showy and long flowering.
Penstemon 'White Bedder':
Pure white tubular flowers over semi-evergreen foliage. Frost-hardy perennial. Up to 60cm.
Persicaria runcinata 'Purple Fantasy':
Attractive foliage perennial with triangular leaves with V shaped dark purple marks. Loose spikes of pink/white flowers in summer. Hardy. Up to 60cm.