Salvia uliginosa (Bog sage)
This moisture-loving perennial produces clear sky blue flowers with white highlights in late summer to mid-autumn. It forms an airy clump to 6 feet tall by 3 feet wide, and is great for the back of a border. It is tolerant of a range of soils.
Noteworthy Characteristics: Fast growing, This species is great in a mixed border; butterflies love it.
Care: Provide moist but well-drained soil in full sun.
H to 1.5 mtrs
W to .9mtrs
Prune hard after flowering.
Frost tolerant & drought hardy.