Verbena, Brazilian verbena, Verbena bonariensis.

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

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

Sea Holly, Leavenworth's eryngo, Eryngium leavenworthii, Detail of purple coloured flower 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.

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

Monkshood, Kusnezoff monkshood, Aconitum kusnezoffii, Close up of purple coloured flowers growing outdoor.

Dogwood, Flowering dogwood, Kousa Dogwood, Cornus kousa, Detail of plant with red coloured fruit growing outdoor.

Korean clematis, Clematis serratifolia, Detail of yellow coloured flower growing outdoor.