Masterwort, Astrantia major 'Pink penny', close up side view of pink and green flower head.

Anemone hupehensis var. japonica, Side on view of a single pink japanese anemone, shot against a painterly effect green background.

Ranucuclus, Persian buttercup, a Ranunculus asiaticus, orange flower against a solid black background.

Ranucuclus, Persian buttercup, a Ranunculus asiaticus, black and white against a solid black background.

Hosta, spikey flowerhead not yet opened.

Black-eyed Susan, Rudbeckia hirta 'Moreno', orange tinged mahogony flower showing ring of yellow stamens around the black cone.

Sea holly, Eryngium variifolium close up of flower. ,

Sea holly, Eryngium variifolium close up of flower.

Sea holly, known as Miss Wilmott's ghost, Eryngium giganteum.

Variegated Sword Lily, Furcraea selloa var. marginata, close up detail of leaves.

Blackthorn or Sloe, Prunus spinosa, blossom on bare wood twigs against a blue sky.

Blackthorn or Sloe, Prunus spinosa, blossom on bare wood twigs against a blue sky.