Quince, Cydonia oblonga, Close top view of one opening white flower and leaves.

Natal plum, Carissa macrocarpa, Top view one of white flower against leaves.

Aloe vera, Two plants in foreground, one with a flowering spike and others behind, Growing on a dry terrain against a blue sky.

Glory bush, Tibouchina urvilleana, Purple flower with prominent stamen on an evergreen shrub.

Icelandic poppy, Papaver nudicaule, Close-up detail of a single orange flower with yellow stamen against a green leafy background.

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

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

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

Allium sphaerocephalon, A single purple spherical flower on a stem isolated in shallow focus against green leaves.

Montbretia, Crocosmia 'Lucifer', Branched spike with emerging showy funnel-shaped red flowers isolated in shallow focus against a green and grey background.

Montbretia, Crocosmia 'Lucifer', Branched spike with emerging showy funnel-shaped red flowers isolated in shallow focus against a green and grey background.

Agapanthus africanus, Close view of blue purple flowers emerging from sheath.