Monkey puzzle tree, Araucaria araucana, Tip of one spikey branch of overlapping spikes with clear area of blue sky above.

Agave, Giant agave, Agave salmiana, Close view of grafitti scratched into the fleshy leaf.

Dogwood, Wedding cake tree, Cornus controversa 'Variegata', View through several interwoven branches sporuting new shoots of yellow and green variegated leaves, to a mass of blue forget-me-nots, Myoso...

Dog's tooth violet, Erythronium dens-canis 'Old Aberdeen', Side view of single pink flower with relfex petals and long white stamens tipped with blue.

Snow crocus, Crocus chrysanthus 'Blue Pearl', Side view of one partly open pale mauve flower with yellow base, with another smaller one beside it, rising out of soft focus grass background.

Snow crocus, Crocus chrysanthus 'Blue Pearl', Side view of one partly open pale mauve flower with yellow base, with another smaller one beside it, rising out of soft focus grass background.

Winter windflower, Anemone blanda 'Blue Shades', Side view of delicate blue daisy flower partially open rising up from soft focus blue area. Soft misty light.

Winter windflower, Anemone blanda 'Blue Shades', Side view of delicate blue daisy flower partially open, with another behind.

Palm, Canary Island date palm, Phoenix canariensis, Several leaf fronds and large bunches of red colour dates against pale blue sky.

Dinosaur Back Plant, Myrtillocactus geometrizans forma cristata, Close view of spiny ribs of this unusual blue green cactus.

Dinosaur Back Plant, Myrtillocactus geometrizans forma cristata, Close view of spiny ribs of this unusual blue green cactus.

Cactus, A spikey blue leaf showing groups of spines.