Rhododendron, Studio shot of white flowers on a stem against a pure white background.

Cactus, Orchid cactus, Epiphyllum cultivar, Flower of the Night, Exootic white flowers against a black background.

Aubretia, Close up of purple coloured flowers growing outdoor.

Buttercup, Meadow buttercup, Ranunculus acris, Single yellow flower growing outdoor amid green foliage.

Box, Common box, Buxus sempervirens, Side view of backlit leaves.

Korean fir 'Silberlocke', Abies koreana 'Silberlocke', Purple cones on young plant.

Korean fir 'Silberlocke', Abies koreana 'Silberlocke', Purple cones on young plant.

Orchid, Moth orchid, Phalaenopsis, Studio shot of several pink open flower heads on horizontal stem.

Orchid, Moth orchid, Phalaenopsis, Studio shot of several pink open flower heads on horizontal stem.

Hellebore, Helleborus, Studio shot of pink flower head on stem.

Hellebore, Helleborus, Studio shot of black flower head on stem.

Hellebore, Helleborus, Studio shot of mottled dark pink flower head on stem.