My observatory
Bill has spent much of his life on Hampstead Heath. Although he feels like he's miles away from anywhere, a break in the trees offers one of the best views of London City - when it's…
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Water vole by Terry Whittaker/2020VISION
Chwilio
False oat-grass
A fluffy-looking grass of rough grassland, roadside verges and disturbed ground, False oat-grass is very familiar and often overlooked; in fact, it can help to stabilise dunes and shelter small…
Field maple
An inconspicuous tree for much of the year, the Field maple comes to life in autumn when its lobed leaves turn golden-yellow and its winged fruits disperse in the wind. Look for it in hedges and…
Tansy
Tansy is an aromatic plant of rough grassland, riverbanks and verges that has button-like, yellow flower heads. It is the main foodplant of the rare Tansy Beetle, now found at only two places in…
Wild cherry
The mass of white, frothy blossom on a wild cherry is a sight to behold. Planted as an ornamental tree, it also grows wild in woods and hedges. Its red fruits are the edible cherries we know and…
Deadly nightshade
As its name suggests, Deadly nightshade is a highly poisonous plant. Its black, shiny berries may be tempting but fatal. Found on chalky and disturbed ground, such as scrub or verges, it has bell-…
Hogweed
Hogweed can be found along hedgerows and roadside verges, and on waste ground and rough grassland. It displays umbrella-like clusters of creamy-white flowers. It's native, unlike its relative…
Japanese knotweed
Introduced from Japan in the 19th century, Japanese knotweed is now an invasive non-native plant of many riverbanks, waste grounds and roadside verges, where it prevents native species from…
Musk mallow
Musk mallow has pretty pink flowers that can be seen along roadside verges, hedgerows and field margins in summer. It lives up to its name, producing a delicate, musky smell that increases indoors…
Pyramidal orchid
The pyramidal orchid lives up to its name - look for a bright pinky-purple, densely packed pyramid of flowers atop a green stem. It likes chalk grassland, sand dunes, roadside verges and quarries…
Red valerian
Red valerian was introduced in the 1600s from Europe, but is now naturalised in the UK. Its pinky-red flowers grow from old walls, roadside verges, railway cuttings and cliffs, and provide nectar…
Bramble
The bramble is the thorny shrub of hedges, woods and scrub that gives us delicious blackberries in autumn. Gathering wild food can be fun, but it's best to do it with an expert - come along…