Start a nature journal to notice seasonal changes

Why a nature journal is worth your time

There is a particular kind of noticing that only happens when you write something down. You might walk the same footpath every morning, but the moment you commit to recording what you saw, the walk changes. You start to register the first hazel catkins, the exact week the swallows arrive, the day the horse chestnut leaves unfurl. A nature journal is simply a notebook where you keep these observations. It costs almost nothing, needs no special equipment, and rewards you with something increasingly rare: a slow, detailed familiarity with the place you live.

The idea is not new. Naturalists have kept such records for centuries, and in Britain we have an unusually rich tradition of it, from Gilbert White's letters about Selborne to the thousands of ordinary people who now submit sightings to county wildlife trusts. You do not need to be a scientist. You need a notebook, a pencil, and a willingness to look a little more closely than usual.

Choosing a notebook and setting it up

Keep it simple. A5 is a good size, small enough to slip into a coat pocket or rucksack, big enough to sketch a leaf or paste in a feather. A hardback with an elastic band will survive British weather better than a flimsy pad. If you prefer, a plain ring binder lets you add pages, but there is something satisfying about a single bound book that fills up over the year.

Set aside the first few pages for a few useful things:

• A simple key for recording weather, such as a small symbol for sun, cloud, rain, wind direction and temperature.
• A grid for repeat observations, so you can compare the same tree or patch of ground each week.
• A list of questions you want to answer over the year, such as when the first frost arrives or which flowers the bees favour in June.

Write in pencil if you plan to sketch, as mistakes are easy to rub out, and date every entry. Even a rough note like "Tuesday 14 March, 7.20am, frost on the shed roof, first chiffchaff singing" becomes valuable when you look back a year later.

What to record, and how to record it

The temptation is to try to capture everything, which quickly becomes overwhelming. Better to choose a handful of things and follow them closely. A good starting point is weather, wildlife and plant growth, the three pillars of any seasonal record.

• Weather: note temperature, cloud cover, wind and whether there has been rain or frost. A cheap outdoor thermometer by the back door makes this easy.
• Wildlife: record the first and last sightings of migrants such as swallows and cuckoos, the appearance of frogs in the pond, or the hum of the first bumblebee.
• Plants: choose one tree, one shrub and one flower bed near your home. Note when buds break, when leaves open fully, when flowers appear and when they set seed.

Add a short line about what you were doing and how it felt. "Cold wind from the east, hands numb, but the blackthorn is starting at last" tells you more than a bare list of dates ever could.

Making it a habit that lasts

The hardest part is keeping going past the first enthusiastic fortnight. The trick is to attach the journal to something you already do. If you walk the dog at seven, take five minutes afterwards to write up what you noticed. If you drink tea in the garden, keep the notebook on the kitchen windowsill beside the kettle.

Aim for little and often. Two or three sentences on a weekday and a longer entry at the weekend will give you a far richer record than one grand, detailed session each month. Set a gentle reminder on your phone for the first of each month to look back over your notes and notice what has changed.

Do not worry about neatness or artistic skill. A wobbly sketch of a seed head, a pressed petal taped to the page, or a rough map of where the hedgehog was seen all count. The journal is for you, not for an audience.

Deepening the practice through the seasons

As the months pass, you will find your entries begin to talk to one another. You will see that the oak leafed out a full fortnight earlier than last year, or that the first frost came three weeks later. These small comparisons are where the real pleasure lies, and they are also genuinely useful. Phenology, the study of seasonal timing, depends on exactly this kind of ordinary, repeated observation.

If you would like to go further, consider joining a local recording scheme run by a wildlife trust or your county recorder. Your notes on flowering dates, bird arrivals or butterfly counts can feed into real conservation work. But even if you never share a single page, the journal will change how you see your street, your garden and the fields beyond it.

Start this week with one page. Write the date, step outside, and note three things you can see, hear or smell. That is all it takes to begin a habit that will quietly enrich your year, and every year after it.