African violet, a Saintpaulia cultivar with purple flowers edged with white, around yellow tipped stamen, Graphic top view of one flower with buds and leaves, Rich deep colours.

African violet, a Saintpaulia cultivar with purple flowers edged with white, around stubby yellow tipped stamen, Close view of one flower with leaves, Rich deep colours.

Heliconia rostrata, often known as Lobster claw, Bright red pendula clawlike flowers tipped with yellow and green, surrounded by glossy green leaves, Photographed in Southern Vietnam.

Primrose, Primula 'Appleblossom', Overhead view of one cream flower flushed with pink and a yellow centre, surrounded by a neat rosette of green leaves.

Primrose, Primula 'Appleblossom', Overhead graphic view of three flowers flushed with pink and a yellow centre, surrounded by green leaves.

Primrose, Primula 'Delia mix', Overhead graphic view of one cream flower with a pink ring and yellow middle, surrounded by a neat rosette of green leaves.

Primrose, Primula 'Delia mix', Overhead graphic view of one cream flower with a pink ring and yellow middle, positioned in the centre surrounded by a neat rosette of green leaves.

Nasturtium, a Tropaeolum majus cultivar, Close view of two leaves with droplets, one large droplet in the centre.

Glaucus echeveria, Echeveria secunda var, glauca, Graphic, overhead, cropped view of part of two rosettes of grey-green leaves flushed pink at their edges.

Glaucus echeveria, Echeveria secunda var, glauca, Graphic, overhead, cropped view of a rosette of grey-green leaves flushed pink at their edges.

Cow parsley, Anthriscus sylvestris, Top view of masses of white flowers and leaves,

Cow parsley, Anthriscus sylvestris, Top view of several white flowers and fern shaped leaves forming a patern,