Rose, Rosa 'The generous gardener', a single bud close up with soft focus background.

Rose, Rosa 'The generous gardener', a single bud close up with soft focus background.

Golden male fern, Dryopteris affinis growing in a dry stone wall in Cornwall, UK.

Campion, Red:Silene dioica, along a garden path.

Campion, Red:Silene dioica, along a garden path.

Crambe, Crambe cordifolilia, detail of flowers growing on the plant outdoor.

Lungwort, Pulmonaria officinalis, close view of cluster of small, funnel shaped pale blue and pink flowers.

Lungwort, Pulmonaria officinalis, cluster of small, funnel shaped pale blue and pink flowers.

Saffron, Crocus sativus.

Young seedling growing in soil.

Young seedlings growing in soil.

Cow horn, Euphorbia grandicornis. Close view of tiny yellow flowers growing along edges of spiny, fleshy leaves.