Bear's breeches, Acanthus mollis, Side view of seedhead bearing bright green fruit containing seeds on a plant in autumn.

Spinach, Spinacia oleracea, Close-up detail of a green vegetable leaf in sunlight.

Canna indica, Close up of unusual purple seed pods in autumn.

Nasturtium, Tropaeolum majus, Close up of green leaves showing the white veins.

Rose mallow 'Blue Bird', Hibiscus syriacus 'Oiseau Bleu', A single purple blue flower with white stamens.

Rose mallow 'Blue Bird', Hibiscus syriacus 'Oiseau Bleu', Purple blue buds opening among green leaves on a shrub.

Summer hyacinth, Galtonia candicans, Pendulous white flowers with black tipped stamens.

Summer hyacinth, Galtonia candicans, Pendulous white flowers with black tipped stamens.

Summer hyacinth, Galtonia candicans, Pendulous white flowers with black tipped stamens.

Summer hyacinth, Galtonia candicans, Pendulous white flowers with black tipped stamens.

Agapanthus africanus, Close view of a white flowers emerging from an umbel shaped flowerhead.

Agapanthus africanus, Close view of blue purple flowers emerging, from an umbel shaped flowerhead, against a green background.