The spiky, silvery leaves of Sea-holly give this plants its common name. Look for its beautiful, thistle-like, blue blooms on coastlines and sand dunes in summer.

Native Oysters are a staple of our seas and our plates - but our love of their taste has lead to a sharp decline all around the UK.

The jay is a colourful member of the crow family, with brilliant blue wing patches. It is famous for searching out acorns in autumnal woodlands and parks, often storing them for the winter ahead…

The bright blue, trumpet-shaped flowers of the marsh gentian contrast deeply with the pinks and purples of the wet heaths it inhabits. The New Forest holds a large population of this late-…

With its fluffy-looking, light blue flower heads, sheep's-bit is a pretty plant of dry grassland, heaths and clifftops. Sometimes carpeting an area, it is popular with nectar-loving insects…

The Banded demoiselle can be seen flitting around slow-moving rivers, ponds and lakes. The males are metallic blue, with a distinctive dark band across their wings, and the females are a shiny…

The Carline thistle produces distinctive brown-and-golden flower heads that look like a seeded thistle. These flowers are attractive to a wide range of butterflies, including the very rare Large…

This purply-brown seaweed is a common feature on our rocky shores and on our dinner plates.