Nemesia fruticans 'Cherry Blue'

Cherry Blue Nemesia

Botanical Name: Nemesia fruticans 'Cherry Blue'
Family: Scrophulariaceae
Origin: South Africa (cultivated selection)
Plant Type: Evergreen perennial shrub

Overview

A charming, compact flowering perennial perfectly suited to Adelaide's Mediterranean climate, Nemesia fruticans 'Cherry Blue' forms neat, bushy mounds of fine foliage smothered in masses of unique bicolour orchid-like flowers in purple/blue and white for months on end. Blooming from spring through autumn with a brief winter rest, it delivers continuous cottage garden charm with eye-catching colour contrast and minimal fuss. Compact, floriferous and easy-care, it's ideal for borders, edging, containers, cottage gardens and mass plantings, bringing cheerful bicolour beauty to water-wise South Australian gardens.

Key Features

• Mature Size: 30–40 cm H × 30–40 cm W (compact, bushy mounding habit)
• Growth Rate: 20–30 cm per year under good conditions
• Foliage: Small, narrow bright green leaves; fine-textured, bushy growth; evergreen to semi-evergreen (may become semi-dormant in cold winters but recovers quickly in spring)
• Flowers: Masses of small, orchid-like bicolour flowers in purple/blue and white; blooms prolifically spring through autumn (September–May) with peak flowering in spring and autumn; brief winter rest in cooler areas
• Fragrance: Lightly fragrant—sweet, subtle scent
• Seasonal Interest: Long flowering season from spring through autumn; evergreen to semi-evergreen foliage provides year-round structure in mild winters
• Wildlife Value: Good for pollinators—attracts bees, butterflies, and beneficial insects
• Tolerance: Moderate drought tolerance once established (performs best with regular summer water); heat-tolerant with afternoon shade in hot inland areas; frost-hardy (tolerates light to moderate frosts; may die back in hard frosts but usually recovers); wind-tolerant in sheltered positions; coastal-tolerant in sheltered gardens; requires good drainage—will not tolerate waterlogging
• Planting Density: Border/edging: 6–9 plants per m²; Mass planting: 30–40 cm apart for continuous effect
• Pet Friendly: Generally regarded as non-toxic to pets

Where It Works Best

• Sunlight: Full sun to part shade (best flowering and most vibrant bicolour contrast in full sun with light afternoon shade in hot inland areas; tolerates part shade but flowers less)
• Soil: Well-drained loam, sandy loam, or improved clay loam; thrives in moderately fertile soils; excellent in raised beds, rockeries, and containers with premium potting mix; avoid heavy clay or waterlogged conditions
• Water Needs:
  • Establishment: Deep soak twice weekly for 6–8 weeks
  • Established: Deep soak 2–3 times weekly in summer for best flowering (more tolerant of dryness than traditional annuals but performs best with consistent moisture); reduce watering in winter
• Maintenance: Low to moderate maintenance; deadhead spent flowers regularly to prolong blooming and maintain tidy appearance (or shear lightly after main flowering flush); trim back by one-third in late winter to encourage fresh, bushy growth; feed lightly in early spring and midsummer with slow-release fertiliser or liquid feed; mulch to retain moisture; generally pest and disease-free
• Lifespan: 3–5+ years (short-lived perennial; may become leggy with age; easy to replace or refresh)
• Climate Zones: Ideal for Mediterranean and temperate South Australia—Adelaide plains, foothills, Fleurieu Peninsula, sheltered coastal and inland gardens
• Soil pH: Slightly acidic to neutral (pH 6.0–7.0); tolerates mildly alkaline soils if well-drained

Landscape & Design Ideas

• Cottage gardens and perennial borders for unique bicolour charm
• Border edging and path fronts for months of cheerful cherry-red and blue blooms
• Mass planting in drifts for spectacular seasonal colour contrast
• Containers, pots, and hanging baskets for patios, balconies, and courtyards
• Mixed perennial beds with lavender, salvia, diascia, and verbena for complementary colours
• Rock gardens and raised beds with excellent drainage
• Seasonal colour in water-wise garden beds (with supplemental summer water)
• Pollinator and bee-friendly gardens for continuous nectar

Why You Will Love It

'Cherry Blue' nemesia delivers months of unique bicolour blooms with cottage garden charm and minimal fuss. Compact, floriferous, and surprisingly tough, it brings eye-catching purple/blue and white orchid-like flowers from spring through autumn, transforming borders, containers, and garden beds into cheerful seasonal displays. Easy-care, pollinator-friendly, and perfect for adding continuous colour contrast to Adelaide's water-wise gardens.