Salvia greggii 'Navajo Red'

Navajo Red Salvia / Navajo Red Sage

Botanical Name: Salvia greggii ‘Navajo Red’
Family: Lamiaceae
Origin: Southwestern USA & Northern Mexico (arid uplands)
Plant Type: Evergreen to semi-evergreen perennial shrub

Overview

Perfectly suited to Adelaide’s hot, dry Mediterranean climate, Salvia greggii ‘Navajo Red’ is a vibrant, heat-loving salvia celebrated for its masses of glowing red flowers that appear from spring through late autumn. Naturally adapted to arid upland regions, it thrives in full sun, poor soils and low-water conditions, making it a dependable performer across South Australia. Its aromatic mid-green foliage releases a fresh herbal scent when brushed and may develop soft silver or bronze tints during dry summers. Compact, colourful and extremely floriferous, it’s ideal for borders, verges, pollinator plantings and alfresco containers. Hardy, long-flowering, and wonderfully low-maintenance, ‘Navajo Red’ brings bold colour and resilience to both modern and cottage-style gardens.

Key Features

• Mature Size: 0.5–0.8 m H × 0.6–1.0 m W (compact, bushy)
• Growth Rate: 20–40 cm per year under good conditions
• Foliage: Aromatic mid-green leaves; may show silvery, bronzy or red-tinged tints in heat, dryness or coastal exposure
• Flowers: Intense bright-red tubular blooms from spring to late autumn, with heaviest flushes in late spring and early autumn
  
• Seasonal Interest: Evergreen through most SA winters; exceptionally long flowering period; foliage deepens in colour during heat or dry spells
• Wildlife Value: A major attractor for bees, butterflies and nectar-feeding birds—especially honeyeaters
• Tolerance: Drought-tolerant (once established); heat- and wind-tolerant; coastal-tolerant (second-line, occasionally first-line with drainage); light frost hardy; handles reflected heat from paving, gravel and walls
• Planting Density: Borders: 2–3 plants per metre; Mass planting: 3–4 plants per m²; Containers: 25–35 cm pots
• Pet Friendly: Non-toxic to cats and dogs

Where It Works Best

• Sunlight: Full sun for richest colour and most prolific flowering; tolerates light part shade with reduced bloom
• Soil: Free-draining loam, sandy soil or gravelly soil; highly tolerant of Adelaide’s slightly alkaline ground
• Water Needs: Establishment: 2 deep soaks/week for 8–12 weeks. Established: deep soak every 10–14 days in summer; minimal water needed in winter
• Maintenance: Light trim after each flowering flush to encourage rebloom; hard prune by one-third in late winter to maintain shape and vigour; avoid high-nitrogen fertilisers; optional low-N feed in early spring
• Lifespan: 5–10+ years in well-drained soils
• Climate Zones: Excellent for Mediterranean and temperate South Australia — Adelaide Plains, Barossa, Fleurieu Peninsula, coastal suburbs
• Soil pH: Neutral to alkaline; tolerates slightly acidic soils with good drainage

Landscape & Design Ideas

• Modern & Mediterranean Gardens: Pairs beautifully with silver foliage plants (Artemisia, Leucophyta, Westringia)
• Dry Borders & Nature Strips: A bright, low-water, heat-hardy colour anchor
• Pollinator Gardens: Outstanding long-season nectar source
• Coastal & Heat-Exposed Sites: Thrives where many perennials struggle
• Cottage & Mixed Borders: Combine with Gaura, lavender, Mexican sage and grasses for movement and colour

Why You Will Love It

‘Navajo Red’ delivers an incredibly long flowering season, glowing red blooms and fragrant foliage while thriving in South Australia’s heat and dryness. With minimal care and maximum colour, it’s a standout performer for borders, verges, native-style mixes and sun-baked garden spaces.