salvia nemorosa ‘Kate glenn’ can be propagated from cuttings, seeds, or by division. Softwood cuttings can be taken in summer or semi-ripe cuttings in late summer; remove lower leaves, dip in rooting hormone, and plant in a moist, free-draining medium. Seeds can be sown indoors 8–10 weeks before the last frost, germinating at 18–22°C, and seedlings should be transplanted after the last frost. Clump-forming hardy salvias can be divided every 3–4 years in early spring or autumn.