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Salvia 'Mystic Spires Blue' | Long-Flowering Sage with Vibrant Indigo Spikes
Salvia 'Mystic Spires Blue' is a compact, free-flowering form of the famous Salvia 'Indigo Spires' — celebrated for its striking, velvety blue blooms that appear almost year-round in warm climates. With a tidy, bushy habit and endless flower power, it's a magnet for bees, butterflies, and gardeners alike. Ideal for borders, pots, and mass plantings, this tough, sun-loving perennial thrives in South African gardens, adding bold colour and movement to any landscape.
Sun: Full sun to light shade — best flowering in full sun.
Soil: Moist, fertile, well-drained soil; thrives in compost-enriched sandy or loamy soil.
Water: Moderate — water regularly in dry periods, but do not overwater.
Fertilizer: Feed lightly in spring with a balanced fertiliser to boost flowering.
Pruning: Cut back hard in late winter or early spring to encourage fresh, compact new growth.
Top tip: Deadhead spent flowers regularly to keep the plant blooming for months on end.
Botanical name: Salvia 'Mystic Spires Blue'
Common name: Mystic Spires Blue Sage
Growth habit: Bushy, upright perennial with fine-textured green foliage and tall flower spikes
Size: ±60—80 cm H × ±50—70 cm W
Flowers: Vibrant indigo-blue spikes blooming from spring to late autumn (almost year-round in mild regions)
Fragrance: Lightly aromatic foliage; flowers attract pollinators
Lifespan: Long-lived perennial in frost-free areas; can be treated as an annual in colder regions
Uses: Borders, pots, mixed beds, and pollinator gardens
• Compact and long-flowering — perfect for continuous colour
• Attracts bees, butterflies, and hummingbirds
• Heat tolerant, low maintenance, and ideal for sunny South African gardens
