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.

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

Yew, Taxus baccata, Red berries on spiky tree.

Poppy, Opium poppy, Papaver somniferum, Single red coloured flower growing outdoor.

Cardoon, Cynara cardunculus, Artichoke thistle growing outdoor.

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

Close up of Jade Frost Sea Holly, Erynghan, blossoms.

Close up of Euphorbia flowers, Oregon, USA.

Agave, Close up of thorns on plant before opening.

Lavender, Lavandula, Rows of purple flowers.