Iris, Siberian Flag, Iris sibirica, Studio shot of open pale blue flower head on an upright stem.

Geranium, Cranesbill, Studio shot of single stem showing open purple flowers and buds.

Scabious, Field scabious, Knautia arvensis, Close up of single flowerhead growing in grassland.

Scabious, Field scabious, Knautia arvensis, Close up of single flowerhead growing in grassland.

Blackthorn, Sloe, Prunus spinosa, White blossoms against blue sky.

Anemone, Anemone blanda, Windflower Anemone blanda, Side view of single flower growing outdoor.

Helens Flower, Sneezeweed, Helenium, Sneezewort flowers in a border with Blue Agastache, Hyssop.

Sea holly, Eryngium, Growing outdoor amongst colourful array of flowers.

Forget-me-not, Myosotis arvensis, Blue coloured flowers growing outdoor.

Agapanthus, African lily, Lily of the nile, close up of a single flower growing outdoor.

Blue-eyed grass, Sisyrinchium 'Californian Skies', Delicate blue coloured flowers growing outdoor.

Tulip tree 'Aureomarginatum', Liriodendron tulipifera 'Aureomarginatum', Backlit yellow leaves against a blue sky.