Why hedgerows are worth slowing down for

A hedgerow in late April is one of the busiest places in the British countryside. Within a few metres of verge you can find a dozen species in flower, a dozen more in bud, and a whole shifting cast of insects working through them. The trick is that none of it announces itself. Hedgerow flowers are small, often white or pale, and they sit at exactly the height your eye skips over when you are walking with a purpose.

Slow living, in practice, is not a mood. It is a set of small decisions: walking the same lane weekly rather than a new one monthly, stopping rather than glancing, and accepting that you will get the identification wrong at first. Wildflower watching rewards repetition. Learn one plant properly and the next three become easier, because you start to see structure rather than just colour.

Start with the white umbellifers

The flat-topped white flowers that crowd verges from April onwards are umbellifers — carrot family plants with flower heads like tiny umbrellas. The commonest by far is cow parsley (Anthriscus sylvestris), which lifts hedgerows into a froth of white from April to June. Look closely and you will see the flowers are not flat but slightly domed, with a fringe of uneven outer petals, and the stems are hollow, ridged and often tinged purple. Crush a leaf and it smells faintly of aniseed or carrot.

Do treat this group with respect. Several umbellifers are seriously poisonous, including hemlock and hemlock water dropwort, and the differences are subtle. Never eat a wild umbellifer unless you are being taught by someone experienced, and wash your hands after handling them. Identification is the pleasure here, not foraging.

Once you can spot cow parsley, you can start separating its relatives:

• Hogweed — larger, coarser, with a distinctively grooved stem and flowers that appear later, from June.
• Pignut — daintier, with finely divided, parsley-like leaves and a thin stem; a good indicator of old, undisturbed grassland.
• Sweet cicely — softer, more fern-like foliage with a strong aniseed smell, mostly in the north and west.
• Ground elder — lower growing, with leaves divided into three groups of three, common on shady banks and the bane of many a garden.

Bluebells and the woodland edge

Where a hedge runs alongside old woodland, the ground beneath it can turn blue from mid-April into May. Our native bluebell (Hyacinthoides non-scripta) hangs its flowers to one side of the stem and carries a sweet, slightly heavy scent. Spanish bluebells, the garden escape, stand more upright with flowers all round the stem and have little or no scent.

Bluebells are slow. A colony can take decades to establish, and trampling the leaves before they die back weakens the bulbs for the following year. It is also an offence to uproot any wild plant without the landowner's permission, so photograph rather than pick, and keep to the path even when the blue looks deeper further in.

Other woodland-edge plants tell the same story of age and continuity: wood anemone, with its starry white flowers and deeply cut leaves, spreading by root rather than seed; lesser celandine, one of the first yellows of the year, glossy and low; and primrose, pale and crumpled-looking in the leaf litter.

The smaller characters worth learning

Once your eye is tuned to the ground layer, six more plants will fill most of your spring walks:

• Red campion — pink-red, with five notched petals and a hairy stem; often beside bluebells, and a useful early nectar source.
• Greater stitchwort — white stars on weak, wiry stems, threading through hedgebanks from April, hence its old name, "shirt buttons".
• Herb Robert — small pink flowers with darker veins and reddish, ferny leaves that smell faintly unpleasant when rubbed.
• Red dead-nettle — purple-pink, with nettle-shaped leaves that do not sting, common on disturbed verges almost all year.
• Garlic mustard, or Jack-by-the-hedge — white, four-petalled flowers and heart-shaped leaves that smell of garlic when crushed.
• Dog violet — small, unscented and blue-purple, growing low and often overlooked in favour of its showier relations.

Notice the order in which these appear and you are doing something quietly valuable: recording phenology, the timing of the seasons. A weekly note of what is flowering on your usual lane becomes, over a few years, a genuine local record.

A slow-walk routine that sticks

The most useful habit is unglamorous. Pick one lane, one footpath or one stretch of hedge and walk it at least once a week from March to June. Go at the pace of someone with nowhere to be. Stop every hundred metres or so. Stand still for a full minute and let your eyes drop from the tops of the trees down to the verge — most people scan horizontally and miss everything below knee height.

Carry a hand lens, a pencil and a small notebook or phone for dates and grid references. Photograph the whole plant, then the flower head, then a single leaf, because leaves are often what settles an identification. Learning to describe a plant in words — hairy or smooth, opposite or alternate, square stem or round — is more reliable than any photograph.

Walk after rain as well as in sunshine. Damp brings out scent and colour, and the hedgerow is at its most alive. And go back to the same spot in a fortnight. The cow parsley will have moved on, the campion will be thicker, and something you could not name last time will have opened far enough to make itself obvious. That is the whole pleasure of it: not ticking off species, but watching a place change, slowly, at the speed it actually moves.