Montbretia, Crocosmia 'Lucifer', Green seed pods isolated in shallow focus.

Ornamental onion, Allium, single purple flower on a stem isolated in shallow focus against green leaves.

Rose mallow, Hibiscus syriacus 'Blue Bird', single purple blue flower growing on a shrub.

Rose mallow, Hibiscus syriacus 'Blue Bird', purple blue flower and buds growing on a shrub against a green background.

Rose mallow, Hibiscus syriacus 'Blue Bird', single purple blue flower growing on a shrub against a green background.

Summer hyacinth, Galtonia candicans, green seed pod on a plant.

Rose mallow, Hibiscus syriacus 'Blue Bird', purple blue bud opening among green leaves on a shrub.

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

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

Indian mallow, Abutilon, close up view of flower interior and red petals.

Bear's breeches, Acanthus, green fruit containing seeds on a plant in autumn.

Bear's breeches, Acanthus, green fruit containing seeds on a plant in autumn.