With club-shaped leaflets on its fronds, wall-rue is easy to spot as it grows out of crevices in walls. Plant it in your garden rockery to provide cover for insects.

Often found carpeting damp grassland and woodland clearings, the blue flower spikes of bugle are very recognisable. A short, creeping plant, it spreads using runners.

Common sorrel is a common plant of grasslands, woodland edges, roadside verges and gardens. It is also known as 'sour ducks' because its leaves taste tart.

A small and delicate plant of chalk grasslands, Fairy flax can be seen in bloom from May to September - look out for its nodding, white flowers.

The Foxglove is a familiar, tall plant, with pink flower spikes and a deadly nature. In summer, it can be spotted in woodlands and gardens, and on moorlands, roadside verges and waste grounds.

Greater celandine is a very common plant that spreads easily in the garden, on waste ground and in hedgerows. It is considered a weed, but the small, yellow flowers provide nectar for insects.

Hedge mustard is a tall plant with small, yellow flowers atop tough stems. It likes disturbed ground and grows in hedgerows and roadside verges, and on waste ground.

The pretty-in-purple Pasqueflower is now a rare plant in the UK, restricted to just a few chalk and limestone grasslands. Steeped in legend, it flowers at Easter, so is known as the 'anemone…

Pepper saxifrage is a classic plant of unimproved hay meadows and roadside verges. It's upright, branching stems carry umbrella-like clusters of creamy-yellow, flowers in summer.

The true fox-sedge is a rare and threatened plant in the UK. It relies on lowland floodplain meadows and damp habitats, which are rapidly disappearing. Look for reddish-brown flowers in summer.…

In spring and summer, look out for 'cuckoo-spit' - the frothy mass of bubbles that appears on plant stems everywhere. This is actually the protective covering for the nymphs of the tiny…