The nodding, blue bells of the harebell are a summer delight of grasslands, sand dunes, hedgerows and cliffs. They are attractive to all kinds of insects, too.

Pellitory-of-the-wall is a small to medium-sized herb that frequently grows from cracks in old stone walls, pavements, cliffs and banks, and churches and ruins.

This striking duck was introduced to the UK and is now established as a breeding bird in England.

The scarlet pimpernel is now in decline due to intensive agricultural practices. It can be found in arable fields, on roadside verges and waste ground, and on coastal cliffs.

Sika deer were introduced to the UK in the 19th century. They are native to eastern Asia.

Egyptian geese were introduced to Britain from Africa. They are now widespread in southern England.

Europe's largest frog is not naturally found in the UK, but was introduced to Kent and has spread throughout the southeast.

Sometimes called 'Wild spinach', Sea beet can be cooked and eaten. It grows wild on shingle beaches, cliffs and bare ground near to the sea, as well as in saltmarshes.