Philippine violet
[Scientific name] Barleria cristata
[Common names] Blue bell flower, foreign rhododendron
[Family and genus] Acanthaceae, Barleria
Native to India and Myanmar. Prefers warmth and heat, not cold-tolerant. Best in fertile loam mixed with peat.
Plant height about 120 cm, upright or spreading. Leaves opposite, oblong to lanceolate. Dense spike inflorescences, flowers violet-purple, with blue or white spots.
Corolla funnel-shaped, tube slender and long, upper part swollen, about 5 cm long; flowering period from November to March of the following year. Propagated by sowing, seeds sown immediately after collection, and also by softwood cuttings, with a bottom temperature of 18°C. Used for greenhouse cultivation or landscaping in warm regions.