Here you will find plants from the opposite ends of the evolutionary scale. At the one end we have the primitive cycads, whilst at the other are orchids, some of the most sophisticated groups of plants.
The temperate palm house was built in 1858 by Robert Matheson with a grant of £6,000 from Parliament. At 21.95m (72ft) tall this is the tallest glasshouse in the UK, and is one of the tallest classic palm houses in the world.