Zone: 3-9
Height: 100-120 cm [3-4 ft]
Spread: 1 m [3 ft]
Bloom: July-October; lavender-blue
Foliage: silvery-gray-green, velvety texture; aromatic with volatile oils; stems also gray-green, slightly woody at base, square profile (mint family); long stems carry spiralling flowers
Light: Full sun
Water: Moderate to no extra; drought tolerant
Soil: Average to poor; good drainage
Maintenance: Cut to 15 cm [6 in] in spring to encourage new growth
Garden site: Mid- or back area of perennial bed; individual specimen plant or multiple in a row defining a path, etc.; complements a tropical desert look with grasses; esp. nice with white and yellow-blooming plants; a reliable plant that can substitute for lavender in general appearence
Perovskia atriplicifolia (Russian sage)
This pentstemon is very hardy and long-lived and will gently self-sow to form a colony.
