A woody Mediterranean perennial prized for fragrant flower spikes and silvery foliage. Thrives on neglect, lean soil, and sharp drainage, and dies fast in wet feet.
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Full sun
Zones 5–9
18–24 in apart for airflow.
Lean, gritty, sharply draining soil; tolerates poor fertility; pH 6.5–7.5 (slightly alkaline preferred).
Water deeply but infrequently once established; let soil dry fully between waterings, as overwatering rots the roots.
Apr – May
Jun – Aug
Best from softwood or semi-ripe cuttings; seed is slow and erratic to germinate.
Good with Rose, Sage, Echinacea. Keep apart from Mint, Hosta.