Percy Thrower and Ken Burras, Oxford Botanic Gardens.
Shut the door on the frosts and snows outside to look at tropical plants needing hot-house temperatures to flower and fruit in the British Isles.
including:
Banana - loofah and sugar canes - and the legendary giant Amazonian water lily, Victoria regia
Roger Perry shows pictures of his 1963 solo expedition into Brazil to find the plant in its natural waters.
From the Midlands