Achillea, and a Battlefield Herb
Yarrow is a flat horizontal plate of hundreds of tiny flowers on a straight stem, above feathery ferny foliage. It comes in mustard yellow, dusty pink, terracotta, cream and deep red, and the muted, slightly faded look of those colours is exactly why it fits modern arrangements so well.
The botanical name is Achillea, after Achilles, who is supposed to have used it to staunch his soldiers' wounds. That is not just legend attached after the fact: yarrow was carried as a battlefield wound herb for centuries and was still in use in the First World War.
Moonshine and Cloth of Gold
The muted tone florists prize
Walther Funcke and similar
The Pearl; small white pompoms
Fades attractively as it dries
Tall mustard yellow, the classic drying type
The wild species and its coloured cultivars
Small white double pompoms rather than plates
A mixed range of pinks, reds and creams
The ferny leaves rot fast in water.
It fouls water more than most.
Hang it and it keeps shape for years.
Heat and dry air suit it.
Look for plates where most of the tiny flowers are open and the color is even across the whole head, since yarrow fades from the center outward as it ages. Stems should be rigid and the ferny foliage clean rather than yellowing at the base. Crush a leaf: fresh yarrow has a sharp herbal smell. Judge the color carefully, because the muted shades are meant to look faded and it is easy to mistake genuinely old stock for the intended tone.
Early summer into autumn is the field crop and when it is cheapest, with dried yarrow available all year. It is inexpensive throughout, partly because it grows readily and partly because it is still thought of as a herb rather than a flower in much of the trade. Terracotta and deep red cultivars cost a little more than the standard mustard yellow. Demand rises with dried and rustic wedding work rather than with holidays.
Sedum gives flat plates with more substance in autumn. Statice provides color that never fades in a smaller form. Ammi and Queen Anne's lace give flat white umbels with far more air in them. Solidago covers yellow in a plume rather than a plate. For a flat horizontal plane in muted colors that also dries perfectly, yarrow is close to unique and very cheap for what it does.
Yarrow is toxic to cats, dogs and horses. It contains achilleine and volatile oils, causing vomiting, diarrhoea, drooling and in some cases increased urination and skin sensitivity to sunlight. It also causes contact dermatitis in some people who handle it regularly. It looks like a harmless herb and turns up in many summer bunches, so it is worth knowing that it is genuinely on the ASPCA toxic list.
Yarrow is one of the easiest and best drying flowers. Small bunches hung in a dry airy place keep their shape for years. The colors soften rather than vanish, which is generally an improvement.
The finely divided foliage breaks down quickly and turns vase water cloudy and smelly within a couple of days. Take it all off below the waterline.
Modern yarrow cultivars are bred for muted, dusty colors. A stem that looks like it has already faded is often exactly what the grower intended.
After Achilles, who according to legend used it to treat his soldiers' wounds. That is more than mythology: yarrow was genuinely carried as a battlefield wound herb for centuries and was still being used for that purpose in the First World War.
Yes, and it is one of the best. Hang small bunches upside down somewhere dry and airy. It holds its shape almost perfectly and the colors soften to a muted tone that many people prefer to the fresh flower.
No. It is on the ASPCA toxic list for cats, dogs and horses, causing vomiting, diarrhoea and drooling. It looks like an innocuous herb and appears in many summer bouquets, so it is worth being aware of.
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