Cobalt-blue flowers emerge from near-black calyces on tall anise-scented stems, irresistible to honeyeaters. Vigorous and free-flowering through the warmer months.
At a glance
- Plant type: Perennial
- Mature size: 1.5 m H × 1 m W
- Aspect: full sun and part shade or morning sun
- Water: regular, moderate watering
- Frost: tender
- Maintenance: low maintenance
- Origin: Exotic
About Black and Blue Sage
Botanically, Salvia guaranitica 'Black and Blue' is a fast-growing perennial in the Lamiaceae family. It reaches around 1.5 m tall and 1 m wide at maturity, with aromatic and deciduous foliage. Blue flowers appear for much of the year.
Where to grow Black and Blue Sage
Black and Blue Sage suits warm-temperate and subtropical climates and grows best in full sun and part shade or morning sun. It is frost tender, so protect it from hard frosts or grow it in a sheltered spot or pot. It also is a genuinely water-wise choice.
Soil & planting
Black and Blue Sage does best in free-draining soil. Dig in plenty of compost before planting, water in well, and mulch to keep roots cool.
Watering & feeding
Black and Blue Sage does best with regular, moderate watering. A light spring feed is usually enough to maintain steady growth. New plantings need closer moisture checks in hot or windy weather, with watering tapered once strong new growth appears.
Pruning & care
Prune Black and Blue Sage after flowering to keep it compact and encourage the next flush of blooms. Once established, it is low maintenance.
Using Black and Blue Sage in the garden
Black and Blue Sage earns its place for drawing nectar-feeding birds into the garden, feeding bees and pollinators and a feature or specimen planting.
Companion planting & design
For easier irrigation and care, group Black and Blue Sage with species that also favour regular, moderate watering and warm-temperate climate. Leave enough room for the mature spread so neighbouring plants are not crowded out.
Good to know
It is regarded as non-toxic and pet-safe.
Buying Black and Blue Sage
Plant Sale lists Black and Blue Sage as potted plants. Catalogue forms are planning guidance until the Plant Sale team confirms live availability.
