Heather
Calluna vulgaris
The moor in August is a purple sound as much as a colour.
Overview
Heather is the plant of the high moor, the exposed ridge, the ground that has been stripped of everything else and left to the elements and to whatever can endure them. It is extraordinarily persistent — heather moorland, maintained by burning and grazing, is an almost entirely artificial landscape that is nonetheless ancient enough that it feels inevitable. The flowers come in August and turn hillsides a purple that is also, on the right day, a sound — the sound of bees working through acres of small bells, collecting the dark, complex honey that bears the moor's flavour into winter. White heather, rare enough to be memorable, has been lucky in Scottish tradition since before anyone recorded the reason, and the reason has been assigned variously to the Pictish Queen Malvina, to the bones of fallen warriors, and to the simple rarity of the thing.
Botanical Notes
A small, woody, evergreen shrub reaching 20–60cm with tiny, scale-like leaves in four rows along the stems and dense racemes of small, bell-shaped flowers of pink to purple (rarely white) from July to September. Extremely hardy; tolerant of exposure, drought, acid soils, and periodic burning. Dominant on upland moors, heathland, and blanket bog throughout northern Europe, particularly on well-drained, acid, nutrient-poor soils. The primary nectar source for heather honey — one of the most distinctively flavoured honeys in the world, thixotropic in texture due to protein content. Also supports the hen harrier, golden plover, and several moths found nowhere else.
Lore & History
The legend of heather ale — the oldest beer in Britain, said to have been made by the Picts and its recipe lost when the last Pictish king threw himself from a cliff rather than reveal it to Viking conquerors — persists in Scottish tradition and has been revived by at least one craft brewery. Robert Louis Stevenson wrote a poem about it. The recipe, as far as it can be reconstructed, involved heather tips, meadowsweet, and possibly bog myrtle — a gruit ale of the kind brewed before hops arrived in Britain. In the Highlands, heather was used to thatch roofs, stuff mattresses, brew tea, and dye wool. It was gathered on Lughnasadh — the first of August — and woven into protective charms. White heather was worn as a charm by Highland soldiers going into battle.
Warnings
Safe at culinary and herbal doses. Heather honey is safe for adults but, like all honey, must not be given to infants under one year due to botulism risk. No significant toxicity reported at normal use. Those with Ericaceae allergies (related to bilberry and rhododendron) should exercise theoretical caution with large internal doses.