Painted Nettle 'Improved Rainbow Mix' (Coleus blumei) - unleashes a year-round color explosion in tropical indoor, corridor, and balcony gardens. Bold pinks, fiery oranges, deep purples, lime greens, and golden yellows streak across velvety 15-20 cm leaves in wild, unpredictable patterns. This upgraded hybrid delivers brighter, sun-stable hues, larger foliage, and superior heat tolerance versus standard coleus—creating dense, 60-90 cm mounds of non-stop drama.
Grow it because:
Outshines flowers with 365-day foliage fireworks;
Thrives in 32°C+ heat/humidity; pest-resistant, rain-proof;
Perfect for pots on balconies, corridor planters, or bright indoor corners;
Fast from seed (6-8 weeks); self-sows for free plants
Growing:
Scatter seeds on the surface of a moist soil surface. Press lightly with finger for contact.
Depth: 0 mm (light required for germination). Mist gently; cover tray with clear plastic until sprouts appear (7–14 days at 21–29°C).
Pots: 20–30 cm diameter, drainage holes mandatory. Elevate on saucers or pot feet to avoid waterlogging in humid corridors. Mix: 60% peat-free potting soil + 30% perlite + 10% compost. pH 6.0–7.0.
Light: Ideal: 4–6 hours direct morning sun (east-facing balcony/corridor) + bright indirect rest of day.
Watering: Water when top 2 cm soil is dry (finger test).
Fertilizing: Liquid 10-10-10 or 20-20-20, quarter-strength. Every 3 weeks during active growth (all year in tropics). Flush pots monthly to avoid salt buildup.
Pests: Spider mites (dry air) → neem oil spray. Aphids → soap-water blast.
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