Cactus, Prickly Pear Cactus, Opuntia cochenillifera, Detail of spiky plant against blue sky.-

Cactus, Tunicata Cactus, Opuntia tunicata, Detail showing pattern of spiky needles.-

Cactus, Tunicata Cactus, Opuntia tunicata, Detail showing pattern of spiky needles.-

Cactus, Pincushion Cactus, Mammillaria bombycina, Aerial view of spiky plants.-

Hellebore, Helleborus, Detail of mauve coloured flowers growing outdoor.-

Euphorbia polyacantha, Mass of spiky plants growing outdoor.-

Euphorbia echinus, Detail showing the pattern of spiky needles.-

Euphorbia echinus, Mass of green spiky plants growing outdoor.-

Anemone, Anemona blanda, Side view of mauve coloured flowers growing outdoor.-

Elder, Black Elder, Sambucus nigra 'Eva', Mass of tiny pink flowers growing outdoor.

Elder, Black Elder, Sambucus nigra 'Eva', Mass of tiny pink flowers growing outdoor.

Azalea, Rhododendron Koster's Brilliant Red, Detail of peach coloured flowers growing on the plant outdoor.