Phalaenopsis speciosa 'Yong Blue'

Phalaenopsis speciosa 'Yong Blue' is a selection of the species Phalaenopsis speciosa from the Andaman Islands, Nicobar Islands, and Borneo, found at low elevations. In recent taxonomy, speciosa is often treated as a synonym of Phalaenopsis tetraspis; both names remain in use commercially. The plant is medium-sized, approximately 15–20 cm tall, with 10–25 cm leaves and 2–5 lateral, arching or semi-pendent flower spikes. The flowers are waxy and fragrant, usually around 4 cm across, with natural variation in color and pattern.

Commercial note: the mention “plant with spike/flowers/buds” means that at least one of these conditions applies at the time of shipping, not necessarily all of them at once.

It requires moderate to bright, filtered light, approximately 18,000–22,000 lux, protected from strong sunlight and ideally receiving around 12 hours of light per day. Suitable temperatures are around 22–28°C during the day and 18–22°C at night; a 3–4°C difference between day and night helps flowering. It does not need a severe rest period.

Water when the growing medium dries out, then allow the water to drain completely. Do not allow water to remain trapped between the leaves. In a pot, humidity of 55–60% is usually sufficient; when mounted, aim for around ~70%. During active growth, fertilize with a diluted solution (about half the recommended dose) after watering, approximately every third watering, using orchid fertilizer. Use a well-aerated, medium-grade bark mix. A Phalaenopsis growing medium is suitable if it dries out at the rate appropriate for your home. Repot after flowering, when new roots appear.

If the plant produces many spikes but few flowers, check the light and fertilization. Bud drop often indicates dry air, a sudden change of location, or damaged roots. Soft roots and a sour smell indicate overwatering.