Achillea ageratum

English Mace Asteraceae

Cheerfully edible and faintly old-world in its charm, Achillea ageratum—often known as sweet maudlin—behaves like the herb equivalent of a well-meaning eccentric guest who insists on improving your salad. Its softly aromatic leaves carry a curious blend of mild bitterness and herbal sweetness, best used sparingly unless you enjoy your cuisine with a hint of botanical opinion. Historically nibbled, steeped, and generally experimented with, it brings a subtle, almost tea-like complexity to salads, sauces, and infusions for those who like their flavours with a story attached.

In summer it produces flat-topped clusters of soft pale yellow flowers, quietly attractive to pollinators who treat it as a dependable roadside café. Tough, undemanding, and happiest in sun with well-drained soil, it forms steady clumps that slowly widen their territory without ever becoming rude about it. Height 30–60cm; spread 30–45cm.