Sunflowers: meaning, Irish season and how to keep them

A sunflower dies of dirty water rather than old age. The stems are hairy, the leaves are coarse, and between them they put more matter into a vase than any other common cut flower. The water goes cloudy inside two days, bacteria seal the cut ends, and the head droops on a full vase. Change the water every second day and the same bunch runs to ten days.

That is most of what there is to know about keeping them, and it is the part nobody selling them mentions.

What sunflowers mean

The traditional meaning is loyalty and constancy, taken from the young plant's habit of turning its head to follow the sun across the day. Adoration appears in the same tradition, which is the warmer version of the same idea. In the Victorian language of flowers a tall sunflower carried false riches or haughtiness, a reading nobody uses now.

Since 2022 the sunflower has also carried a clear political meaning in Europe as the national flower of Ukraine. That association is strong enough in Ireland that a bunch of sunflowers on a fundraising table reads as a statement, which is worth knowing whether you want the statement or not.

Otherwise they are the most cheerful flower in the shop and nothing more complicated than that.

Season in Ireland

Sunflowers are annuals sown in spring and cut in late summer. Irish farms crop them through August and September, and a handful open the fields for pick-your-own in the same weeks, usually with a charity collection at the gate. Buying Irish in those two months is easy.

Outside August and September, everything is imported, mostly Dutch glasshouse stock. It is available almost year round and it looks the part, but a February sunflower is a strange object: the season is the whole appeal of the flower.

Anyone buying for a date in high summer should also look at what else is in at the same time. The list is on Irish flowers in season.

When to send them, and when not to

Sunflowers suit a new job, a recovery, a birthday, a leaving present, and anything meant to be read as warmth rather than romance. They travel well as a gift for a man, who statistically receives flowers roughly never. They are cheap enough in season to send a big armful, and the size is the gift.

They work at a summer wedding for the same reason: few flowers give as much visual mass for the money in August, which matters when the flower budget is the line everyone underestimates.

Do not send them for sympathy. The tone is wrong and Irish funeral work is quieter than this. Do not send them to a small flat either, since a decent sunflower stands 70cm and needs a heavy vase and floor space rather than a windowsill. And avoid them where nobody can change the water, for the reason above: a sunflower left alone for four days is a bad advertisement for the gift.

Care

Cut 3cm off each stem on a slant with secateurs. The stems are thick and fibrous, and scissors crush them.

Strip every leaf that would sit below the water. On a sunflower this is usually most of the stem, and the bunch looks better for it.

Use a heavy vase with a narrow neck. A mature head weighs enough to tip a light glass vase, and the stems will splay in a wide one until the whole thing goes over.

Fill it about a third and change that water every second day, re-cutting the stems each time. This is the step that matters. If the water is cloudy, you have already lost days.

Keep them out of direct sun once cut, which is counterintuitive and true. Warmth speeds up both the bacteria and the flower. A cool spot and clean water is the whole method, and it is the same method that works for everything else in the care guide.