Blue Queen Salvia is a hardy perennial that thrives where other salvias struggle, producing vibrant indigo-lavender flower spikes on neat, upright plants just 12 to 20 inches tall. This cultivar of Salvia nemorosa grows reliably in zones 4 through 9, making it one of the most cold-tolerant salvias available. Unlike many ornamental salvias, Blue Queen tolerates drier soil and cooler climates without complaint, yet bursts into elegant bloom in full sun. Reach maturity in the second year and enjoy the flowers year after year.
Full Sun
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4-9
20in H x ?in W
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Moderate
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The indigo-lavender flower spikes are genuinely striking, rising above clean foliage on compact plants that don't sprawl or overwhelm a garden bed. Blue Queen salvia earns its reputation for toughness; it grows where other salvias would decline, handling drier, cooler conditions with grace. From seed to blooming plant takes patience, but the payoff is a hardy, long-lived perennial that asks little once established and delivers consistent, vibrant color.
Blue Queen Salvia is grown as an ornamental flower, valued for its striking spikes of indigo-lavender blooms. It excels in flower beds, garden borders, and indoor planters, where its neat growth habit and vibrant color command attention. The upright form and compact size make it useful for adding vertical interest without dominating the space.
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Start Blue Queen Salvia seeds indoors to reach flowering maturity in the second year. Sow seeds on the soil surface or press them lightly into moist seed-starting mix, as they benefit from light for germination. Keep soil consistently moist and warm until seedlings emerge. Transplant seedlings into individual pots once they develop true leaves, and grow them under bright light until outdoor conditions permit planting.
Harden off seedlings by gradually exposing them to outdoor conditions over 7 to 10 days before planting. Transplant into the garden after the last spring frost, spacing plants 12 inches apart. Salvias prefer well-draining soil; amend heavy clay with compost if needed.
Deadhead spent flower spikes regularly to promote continuous blooming and maintain the plant's neat, upright appearance. After flowering ends in late season, cut back the plant by about one-third to encourage bushier growth and prepare it for winter dormancy.
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