Agapanthus africanus, Close view of blue purple flowers with prominent yellow stamen..

Agapanthus africanus, Blue purple flowers on an umbel shaped flowerhead forming a pattern against a white background.

Amaryllis, Hippeastrum 'Red Lion', Two red flowers on a long stem against a white background.

Amaryllis, Hippeastrum 'Red Lion', Two red flowers on a long stem against a white background.

Amaryllis, Hippeastrum 'Red Lion', Two red flowers on a long stem against a white background.

Amaryllis, Hippeastrum 'Red Lion', Two red flowers on a long stem against a white background.

Cornflower, Centaurea cyanus, Close view of one blue flower in sharp focus with dark background,

Lilac, Syringa vulgaris, Close view of a flowering head with a mass of mauve florets, Green background.

Scabious, Scabiosa columbaria 'Blue note', Side view of open lilac flower with same colour stamens against soft focus white background, Selective focus.

Pasque flower, Pulsatilla pratensis, Fluffy seedhead with dark strands silhouetted against pink and blue mottled background.

Osteospermum, a white cultivar, Front view of partially open flower with dark centre against mottled pink background.

Moroccan toadflax, Linaria maroccana, Side view of two delicate pink and yellow flowers on a thin stem against dappled pastel background,