This perennial has slender upright greyish branched stems that form an open rounded habit. It has aromatic grey green thread-like leaves and the pink to orange tube-shaped flowers appear in a long terminal spike from a mid-summer to autumn.

Hardiness zones 5 to 10

Agastache rupertrisis naturally found in North America from south-eastern Arizona to south-western New Mexico extending to northern Chihuahua growing on mountain slopes at an altitude from 1,600 m (5000 ft) to 2,300 m (7000 ft).

It prefers an open sunny position, tolerating hot conditions and grows in poor to moderately fertile very well-drained sandy-stony soils with a pH 6.0-7.2 and is frost tolerant but drought tender.

The Threadleaf Giant Hyssop is grown for its flowers and rounded bushy habit. It is planted small arid gardens along borders or use as a specimen in rockeries. It is suitable for coastal and low-mountain regions establishing in 2-3 years and is moderately long-lived. It is also suitable for roof gardens tolerating hot dry conditions and neglect. ID 3349

Agastache (AH-gah-STAH-kee) rupertris(roo-PER-tris)

Lamiaceae(lay-mee-AY-see-ee)
(Labiatae)
Mint Family