Sea Holly, Leavenworth's eryngo, Eryngium leavenworthii, Detail of purple coloured flowers growing outdoor.

Sea Holly, Leavenworth's eryngo, Eryngium leavenworthii, Detail of purple coloured flowers growing outdoor.

Sea Holly, Leavenworth's eryngo, Eryngium leavenworthii, Detail of purple coloured flowers growing outdoor.

Cardoon, Cynara cardunculus, Artichoke thistle growing outdoor.

Cardoon, Cynara cardunculus, Blue coloured Artichoke thistle growing outdoor.

Dandelion clock, Taraxacum officinnale, Side view of single stem growing outdoor.

Dandelion clock, Taraxacum officinale, Close up of seedhead outdoor showing cypsela.

Dandelion, Taraxacum officinale, Yellow coloured flowers growing outdoor with butterfly.

Dandelion, Taraxacum officinale, Yellow coloured flowers growing outdoor with butterfly.

Dandelion, Taraxacum officinale, Yellow coloured flowers growing outdoor.

Thistle, Creeping thistle, Cirsium arvense, studio shot of seedhead.

Sea holly, Eryngium zabelii, Bumble bee Bombus terrestris & honey bee Apis mellifera, pollinating flowerhead in garden border.