24-36" tall x 30" wide. This is such a versatile plant, being equally at home in both the xeric garden and traditional perennial border. Not fussy about its growing conditions, it has showy rose-red flowers that are continuous from late spring through summer. Prefers a well-drained garden soil. Not recommended for coastal areas of CA, WA and OR, where it can behave aggressively. Cut back in the spring. (seed propagated).