Vandopsis gigantea

Description.

• Type: Epiphytic orchid (grows on trees or mounts, not in soil)

• Origin: Native to Southeast Asia, including Thailand, Malaysia, and Indonesia

• Appearance:

  • Leaves: Long, thick, strap-like, leathery, and bright green. Leaves grow in a fan-like arrangement along a sturdy central stem.

  • Flowers:

    • Large, showy, and trumpet-shaped, often 10–15 cm across.

    • Color is usually yellow with red or purple markings, depending on the variety.

    • Fragrant in some forms, and flowers grow on long upright spikes.

  • Size: One of the largest Vanda-type orchids; mature plants can reach 1–2 meters in height with long hanging roots.

• Growth habit: Monopodial (grows upward from a single central stem) and fast-growing under optimal tropical conditions. Needs strong support if grown in a basket due to its weight.

Care Guide

1. Light:

• Requires bright, filtered light, ideally 50–70% sunlight.

• Can tolerate some direct morning sun but avoid harsh midday sun.

• Indoors, place near a south- or east-facing window with bright, indirect light.

2. Temperature:

• Day: 75–90°F (24–32°C)

• Night: 65–75°F (18–24°C)

• Cannot tolerate frost; sensitive to temperatures below 55°F (13°C).

3. Humidity:

• Prefers 70–90% humidity.

• Mist frequently in dry climates or use a humidity tray/fogger.

• Good air circulation is essential to prevent fungal or bacterial infections.

4. Watering:

• Water thoroughly, ensuring roots dry slightly between waterings.

• During hot, humid periods, water 3–4 times per week; reduce in cooler or less humid seasons.

• Avoid stagnant water in the roots.

5. Fertilizer:

• Use a high-quality orchid fertilizer (20-20-20) at ½ strength every week during active growth.

• Reduce feeding during cooler or slower growth periods.

6. Mounting/Potting:

• Can be grown in hanging baskets, mounted on cork or tree fern slabs, or in pots with very coarse bark/charcoal media.

• Roots should have excellent air circulation.

7. Flowering:

• Blooms in late spring or summer.

• Flowers appear on long upright spikes from the leaf axils and can last 2–3 weeks under good condition