Sea holly, Eryngium x zabelii Jos Eijking. Thistle-like flower heads surrounded by spiny, silvery blue bracts.

Sea holly, Eryngium x zabelii Jos Eijking. Thistle-like flower heads surrounded by spiny, silvery blue bracts.

Yellow flowers of Clematis tangutica.

Flowers of Aster Novi-Belgii Royal ruby. Selective focus.

Poppy, Papaver rhoeas Shirley series. Single, open flower with delicate, drooping petals beside ripening seedhead.

Poppy, Papaver rhoeas Shirley series. Two seed heads one with single petal attached giving appearance of an open fan, scattered with droplets of water.

Poppy, Papaver somniferum. Single, open flower with white petals edged in pink above bud on bent stem.

Poppy, Papaver somniferum. Open flower with sunlight shining through petals and bud on hook shaped stem at side.

Poppy, Papaver somniferum. Two flower heads with fading, double petals.

Poppy, Papaver rupifragum Tangerine Parfait. Two flowers, one above the other with insect curled around anther of upper flower.

Pansy, Viola x wittrockiana cultivar beside another smaller Viola cultivar with pale, purple-blue upper petals and orange lower petal.

Viola cultivar with delicate cream and pale blue translucent petals and yellow eye at centre. One faced forwards, one turned away.