Mackerel are a sign of summer's arrival, when they appear inshore in huge numbers all around the UK. As well as being a sustainable seafood choice, they are an important food source for many…

One of the longest seaweeds native to the UK, thongweed helps create a beautiful underwater forest to rival that of any on the land!

Horseshoe vetch is a member of the pea family, so displays bright yellow, pea-like flowers and seed pods. Look for this low-growing plant on chalk grasslands from May to July.

Creeping jenny is a low-growing plant of wet grasslands, riverbanks, ponds and wet woods. It has cup-like, yellow flowers and is a popular choice for garden ponds.

Eyebright has small, white flowers with purple veins and yellow centres. It likes short grasslands, from clifftops to heaths, and is one of a number of species and hybrids that are hard to tell…

The bulbous buttercup has the familiar butter-yellow flowers of its namesake, but grows from a bulb-like 'corm' (a swollen underground stem). Look for it on chalk and limestone…