Spring-Summer (May-Jun)

Abutilon, mauve flowers (zone 6)… not sure if this will survive

Alchemilla Mollis, yellow-green flowers (zone 4)

Allium, purple flowers (zone 3) June

Alyssum ‘Carpet of Snow’, white flowers (zone 3)

Arabis Alpina ‘Snow Cap’, white flowers (zone 1)

Buphthalmum salicifolium, yellow flowers (zone 3) to September

Choisya, Mexican Orange blossom, white flowers (zone 2)

Clematis florida ‘Bicolor’, cream, green and purple flowers (zone 2) until October

Clematis ‘Franziska Marie’, double blue flowers (zone 4)

Clematis ‘HF Young’ single blue flower (zone 4)

Clematis, Montana ‘Tetrarose’, pink flowers (zone 1)

Clematis Montana, cream flowers (by the conservatory)

Day Lily, yellow flowers (zone 2) to Autumn

Eucalyptus (zone 6)

Geranium ‘Black Beauty’, cranesbill, purple-blue flowers (zone 9)

Geranium, chocolate foliage, pink flowers (zone 1)

Geranium, Johnsons Blue, blue flowers (zone 4)

Himalayan Poppy, Meconopsis betonicifolia, blue flowers(zone 8) to July

Iris Germanica ‘Superstition’, blue-yellow flowers (zone 4)

Iris White City, white flowers (zone 4)

Lychnis Coronaria ‘Alba’ Dusty Miller until July, no flowers (zone 3)

Myosotis, forget-me-nots, white and blue flowers (zone 8)

Ornithogalum, white flowers (zone 6)

Potentilla recta Warrenii, yellow flowers (zone 7) to September

Primula Vialii, purple/red-tipped flower (zone 7) to July

Pratia x pedunculata, little blue flowers (zones 2 and 9)

Rhodohypoxis platypetala, white flowers (zone 1)

Rhodohypoxis baurii, pink and white flowers (zone 1)

Rhodohypoxis ‘sunburst’ pink flowers (zone 1)

Sedum Spathulifolium ‘Purpureum’, yellow flowers (zone 2) all summer?

Sedum, yellow flowers (from A Jac) (zones 4, 5, 6)

Viburnam plicatum ‘Mariesii’, white flowers (zone 7)

Weigela, pink/white flowers (zone 2)

Welsh Poppy, orange flowers (zone 8)

Wisteria, white flowers (zone 2)