Cochliostema odoratissimum

Common Names

Principe Azul, Tira (Spanish)

Summary

Cochliostema odoratissimum is an acaulescent evergreen epiphyte from humid tropical forests of Central and South America, typically growing on trees (occasionally terrestrial) with a large rosette of leaves 0.4–1.2 m long and 10–15 cm wide. It bears ramified axillary inflorescences 25–50 cm long carrying numerous fragrant flowers 4–6 cm in diameter; each flower has three blue-violet sepals (1.5–3 cm) and three similarly sized petals with long-ciliated margins, and a hooded column enclosing spirally twisted anthers. The leaf arrangement forms a tank that collects rainwater and debris, a trait linked to its canopy habitat.

Sources note cultivation in tropical and humid subtropical climates, either on trees or in well-draining aerated organic loam kept constantly humid, using a loose mix such as orchid bark, peat, and perlite with drainage holes. In cultivation, provide bright indirect light, high humidity, and warm temperatures; keep the soil consistently moist but well-drained, and water with rainwater or demineralized water. Fertilize with balanced 10-10-10 every two weeks during the growing season and taper in winter; repot every 1–2 years and propagate by division in spring or early summer; prune dead leaves to maintain shape. It is not known to be toxic to pets or humans; humidity can be increased with a humidifier or humidity tray, and direct sun should be avoided to prevent scorching. Uses include ornamental value for its striking form and intensely fragrant flowers.

Lifecycle

Perennial

Height

2-2.5 feet

Spread

1.5-4 feet

Hardiness Zones

Zone 11

Sunlight Requirements

Ideally partial shade. Bright, indirect light; should not be exposed to direct sunlight.

Soil Type

No soil type is ideal; epiphytic, grows on tree branches rather than in soil.

Soil Drainage

Well-draining soil that retains moisture but does not become waterlogged.

Soil pH

6.0-6.0

Slightly acidic

Bloom Color

Blue to violet

Bloom Time

Year round

Foliage Color

Green

Fall Foliage Color

Purple, Green to purplish, Magenta (bright burgundy)

Leaf Lifecycle

Evergreen broadleaf

Seasons of Interest

Spring and Summer

Propagation Methods

Seeds, Division, Cuttings, Layering