How to Grow Salvia
Perennial
Salvia, sometimes called ornamental sage, is a large group of aromatic plants in the mint family prized for their upright spikes of tubular flowers in blue, purple, red, pink, and white. US home gardeners grow it because it is heat tolerant, drought tolerant once established, and reliably draws bees, butterflies, and hummingbirds. Many perennial types return year after year with little fuss, while some tender kinds are grown as warm-season annuals in colder regions.
Planting
Plant salvia in a spot that gets full sun, at least six hours a day, in well-drained soil; heavy, soggy ground is the most common cause of failure. Set out nursery transplants in spring after the last frost has passed and the soil has warmed, or start seed indoors about eight to ten weeks before your last frost date and harden the seedlings off before moving them out. Space plants about twelve to eighteen inches apart for smaller kinds and up to twenty-four to thirty-six inches for tall, spreading types so air can move freely between them. Dig the hole as deep as the root ball and about twice as wide, set the plant at the same depth it grew in its pot, then water it in well.
Care
Water new plants regularly to help roots establish, then cut back to occasional deep watering, since salvia tolerates dry conditions far better than constant moisture. Most salvias bloom well in average soil and need little feeding; a spring topdressing of compost is usually plenty, and rich soil tends to produce floppy growth. Remove spent flower spikes through the season to keep new blooms coming, and shear leggy plants back by about a third at midsummer to tidy them and spark a fresh flush. In cold-winter areas leave the stems standing until spring for winter protection, then cut back old growth as new shoots appear at the base; a light layer of mulch helps perennial types overwinter.
Bloom time
Salvia typically blooms from late spring or early summer into fall, especially when spent spikes are removed. Individual plants often stay in flower for many weeks, and repeat-blooming types can carry color right up to frost.
Garden uses
Salvia works well in pollinator and cottage gardens, sunny borders, and mixed beds, and compact varieties do nicely in containers. The long, sturdy spikes also make good cut flowers and hold up well in the garden during heat.
Tips
Choose a variety suited to your USDA hardiness zone, since perennial hardiness ranges widely across the many kinds of salvia. Give plants room and full sun to keep foliage dry and stems strong, and avoid overwatering, which is the fastest way to lose them. Tall types may lean in wind or rain, so site them where neighboring plants offer support or add a simple stake early in the season.
General guidance for US gardens. Timing and hardiness vary by region; check your local frost dates and hardiness zone. Page updated Aug 4, 2026.