Salvia leucantha 'Harrys Red'

Harry's Red Mexican Bush Sage

Botanical Name: Salvia leucantha 'Harry's Red'
Family: Lamiaceae
Origin: Mexico (cultivated selection)
Plant Type: Evergreen perennial shrub

Overview

A stunning flowering perennial perfectly suited to Adelaide's Mediterranean climate, Salvia leucantha 'Harry's Red' forms upright, bushy clumps of grey-green foliage topped with dramatic spikes of deep burgundy-red flowers from late summer through autumn and into winter. Exceptionally drought-tolerant and low-maintenance, it thrives in hot, dry positions and delivers months of rich colour when many other plants are fading. Ideal for bold borders, cottage gardens, pollinator havens and water-wise landscapes, 'Harry's Red' brings reliable structure, vibrant blooms and wildlife appeal with minimal effort.

Key Features

• Mature Size: 80–120 cm H × 80–100 cm W (forms rounded, bushy clump)
• Growth Rate: 40–60 cm per year under good conditions
• Foliage: Long, narrow grey-green leaves with a soft, velvety texture; semi-evergreen to evergreen in mild Adelaide winters; aromatic when brushed
• Flowers: Long, dense spikes of deep burgundy-red flowers with purple calyxes; blooms late summer through autumn into winter (peak autumn–early winter)
• Fragrance: Aromatic foliage—pleasant sage scent when touched; flowers lightly fragrant
• Seasonal Interest: Grey-green foliage provides year-round structure with spectacular late-season flowering; extends colour well into winter
• Wildlife Value: Excellent for pollinators—attracts bees, butterflies, and native insects; popular with honeyeaters and other nectar-feeding birds
• Tolerance: Exceptional drought tolerance once established; heat-tolerant; frost-hardy (tolerates light to moderate frosts; foliage may be damaged below -5°C but recovers in spring); wind-tolerant; coastal-tolerant in sheltered positions; poor soil tolerant; requires good drainage—will not tolerate waterlogging
• Planting Density:
  • Border/mass planting: 2–3 plants per m²; spacing approximately 60–80 cm apart
  • Feature/specimen: 1 plant per focal point
• Pet Friendly: Non-toxic and safe for pets

Where It Works Best

• Sunlight: Full sun (essential for best flowering and compact growth; tolerates light afternoon shade)
• Soil: Well-drained sandy loam, loam, or gravelly soil; thrives in lean to moderately fertile soils; excellent in raised beds and containers; will not tolerate heavy clay or waterlogged conditions
• Water Needs:
  • Establishment: Deep soak twice weekly for 8–12 weeks
  • Established: Deep soak every 10–14 days in summer; minimal to no watering in winter once established
• Maintenance: Low maintenance; cut back hard in late winter (to 20–30 cm) to refresh and encourage bushy new growth; deadhead spent flower spikes to prolong blooming; light feed in early spring with slow-release fertiliser if desired (thrives without fertiliser); virtually pest and disease-free
• Lifespan: 5–10+ years (may become woody; rejuvenate with hard pruning or replace)
• Climate Zones: Ideal for Mediterranean and temperate South Australia—Adelaide plains, foothills, Fleurieu Peninsula, sheltered coastal and inland gardens
• Soil pH: Neutral to mildly alkaline (pH 6.5–8.0); tolerates Adelaide's calcareous soils well

Landscape & Design Ideas

• Bold feature plant in cottage gardens and perennial borders
• Mass planting for late-season colour in water-wise garden beds
• Mixed perennial beds with lavender, Russian sage, ornamental grasses, and agapanthus
• Pollinator and bird-attracting gardens
• Informal hedging or border edging along paths and driveways
• Large containers and pots for patios and courtyards
• Cut flowers for fresh or dried arrangements—long-lasting stems

Why You Will Love It

'Harry's Red' Mexican bush sage is the ultimate late-season performer for Adelaide gardens. Rich burgundy-red flower spikes glow against soft grey foliage from late summer well into winter, delivering vibrant colour exactly when most gardens need it. Drought-tolerant, frost-hardy, and loved by pollinators and birds, it thrives on neglect and transforms water-wise gardens into wildlife havens.