Pressed Flowers

Collect in late morning, after dew has gone and before the afternoon heat. Surface water is the enemy — a flower picked wet is already losing the race against browning.

Pick from your own garden or with permission, and never take protected species. Many wild plants are legally protected, and picking rare ones for a craft project is not defensible.

Pansies, ferns, cosmos and grasses press beautifully. Thick fleshy heads like roses and tulips hold too much water and go brown — split them or press single petals instead.

Two flat boards with bolts at the corners, or simply the heaviest books you own. What matters is that the pressure is even across the whole area.

Build up: board, several sheets of blotting or newspaper, the flowers, more paper, board. The paper does the drying; the boards only apply pressure.

Set petals and leaves exactly as you want them and spread anything folded. Whatever shape it goes in with is the shape it keeps — there is no adjusting later.

Leave a gap between flowers. Touching specimens share moisture, dry more slowly, and mould spreads from one to the next.

Tighten the bolts or stack the weight. Firm and even — heavy pressure on one corner crushes those specimens translucent while the others stay damp.

Open the press the next day and replace all the paper with dry sheets. This single step does more for colour than anything else — the first day's paper is carrying most of the water out.

Replace the paper every two or three days for two weeks. Damp paper left in place stops absorbing and starts holding moisture against the petals.

A finished specimen feels papery and cool, not leathery. Any flexibility means water is still in there — put it back, because a half-dry flower will mould in a frame.

Fix each specimen to card with small paper strips or a trace of glue, and write the species, date and place it was collected. An unlabelled pressed flower is decoration; a labelled one is a record.

Why speed preserves colour. Petal colour comes largely from pigments that degrade with moisture, warmth and time. A flower dried quickly locks its colour in before much breakdown occurs; one dried slowly browns. That is the whole reason for changing the paper — you are not tidying, you are removing the water that is destroying the pigment.

Herbarium sheets. The same method makes formal botanical specimens, and herbaria hold millions of them. Some date from the 1500s and 1600s and are still consulted. Modern work extracts DNA, pollen and chemical residues from centuries-old sheets, and specimens are used to track flowering times against climate records. As with bird study skins, the label is what makes a pressed plant scientific rather than merely pretty.

Anna Atkins again. Her cyanotypes of British algae are the photographic cousin of this technique — specimens laid on sensitised paper rather than between blotting sheets. Both were solving the same problem in the 1840s: how to record a plant's exact form without drawing it.

The Victorian craze, and its cost. Pressed flower albums were an enormous nineteenth-century enthusiasm, and so was fern collecting — pteridomania — which stripped some British sites of rare species entirely. It is a genuine cautionary tale for step 2: a harmless-sounding hobby practised by enough people caused real damage.

What pressing cannot do. Pressing flattens. Anything whose interest is three-dimensional — a trumpet flower, a thick bud — loses the very thing that made it worth keeping. For those, drying in silica gel preserves the form at the cost of the flat mounting. Choosing the method means deciding which property you are prepared to lose.