Sinningia

Perhaps better known as Gloxinia, they are very striking flowering plants that should be treated as an annual, rather than a long term houseplant.

Streptocarpus

The 'Cape Primrose' is a collectors plant with exquisite flowers. It is closely related to Saintpaulia and requires similargrowing conditions.

African violets

Also known Saintpaulias, they will flower for many months per year. Keep out of direct sunlight and cold draughts and water moderately.

Moth Orchids

There are a multitude of orchids available but Phalaenopis (moth orchids) are easy to keep and flower longest.

Azaleas 

Beautiful flowering plants which make great gifts at Christmas or in springtime. Keep out of direct sunlight and keep well watered.

Flaming Katy

Kalanchoes. A succulent with bright flowers in many colours. Spathiphyllum. Unlike many houseplants it tolerates a sunny windowsill.