Phalaenopsis amboinensis 'I-Lan' fragrant

Phalaenopsis amboinensis 'I-Lan' is a selection of the species Phalaenopsis amboinensis, described by J.J. Smith in 1911. The species originates from Ambon, Sulawesi, Indonesia, and Papua New Guinea, where it grows epiphytically in humid forests at elevations of 0–400 m, in more shaded locations. It is a small, warm-climate plant. The leaves are elliptical or oblong-lanceolate, up to 25 cm long. The flowers are fragrant.

Flowering is long-lasting. The arching lateral spikes can reach 45 cm and usually appear from late winter into spring. The flowers are cup-shaped, with broad petals and sepals on a cream-yellow or pale orange background, marked with reddish-brown lines. The labellum is small. The 'I-Lan' selection retains the fragrance and floral form of the species.

Light should be moderate, typical for Phalaenopsis: 10,000–12,000 lux, with morning sun or filtered light. With fewer than 10 hours of light per day, growth slows. Warm temperatures are suitable, approximately 22–31°C, without prolonged cold nights. Gentle air circulation helps after watering.

Water when the roots become silvery and the substrate is nearly dry, then allow the water to drain completely. It prefers consistently moderate moisture, not a waterlogged pot. Water in the morning so the leaves and crown can dry by evening. Do not allow water to collect in the leaf axils. During active growth, fertilize with a diluted solution after watering, using orchid fertilizer. In winter, if light levels decrease, reduce watering and stop fertilizing.

Use an airy mix of medium-grade bark, optionally with a little sphagnum, perlite, or charcoal. A Phalaenopsis substrate is suitable if it dries at a pace appropriate for your home. Repot every 2–3 years or when new roots appear, sooner if the substrate has degraded or the roots are damaged.

If the plant is not growing, check the light, warmth, and condition of the roots. Soft roots, a sour smell, or a soft base indicate excess water. Soft leaves may indicate thirst or roots that are no longer absorbing water. Buds may be affected by sudden moves, very dry air, or large temperature fluctuations.