What are Vanda and Mokara Orchids?

Vanda is an epiphytic orchid native to Southeast Asia and India, characterized by a "naked roots" style of cultivation where aerial roots are exposed to air. Plants are fixed to baskets or boards with roots left bare to the air, requiring a completely different cultivation approach than standard potted orchids.

Mokara is an intergeneric hybrid genus created by crossing Ascocentrum, Arachnis, and Vanda, offering easier management and more diverse flower colors compared to Vanda, leading to increased availability in recent years.

Both prefer tropical warm and humid environments, thriving best in Japanese summer cultivation with winter temperature maintenance being the primary challenge.

Root Management: Naked Roots Basics

Vanda and Mokara are best managed with exposed roots. There is no need to bury them in soil—in fact, soil causes root rot.

Basket cultivation (most popular): Fix the plant to a wooden or bamboo latticed basket. Roots naturally extend outward through the gaps in the lattice.

Mounting on boards: Wrap and fix roots to cork or tree fern boards. Roots protruding from the board create a distinctive appearance.

Root observation: Healthy roots turn green immediately after watering and become silver-white as they dry. Blackened or soft roots indicate root rot and should be removed promptly.

Watering and Misting Cycle

Vanda and Mokara follow a basic cycle of "water thoroughly and let dry completely."

Watering: - Summer (growing season): 1–2 times daily, either by soaking the basket in a bucket or spraying thoroughly with a shower - Winter: Reduce to 2–3 times per week, ensuring adequate drying time between waterings

The "dunking method" where the entire basket is submerged in water to wet all roots is most effective. Afterward, drain water thoroughly and return to a well-ventilated location.

Misting: Morning misting of leaves and roots supplements humidity. Avoid evening misting, as it promotes disease.

Light and Temperature Management

Vanda and Mokara prefer high light levels.

Sunlight: Direct sunlight is ideal. They require far more light than Phalaenopsis orchids. South-facing windows or outdoor placement (in summer) are best. Insufficient light prevents flowering.

Temperature: A minimum of 15°C is required, with 20–30°C year-round being ideal. Temperatures below 10°C in winter cause fatal damage. Without a greenhouse or vinyl house, cultivation by a warm indoor window is essential.

Temperature fluctuation for flowering: Creating a day-night temperature difference (30°C during day, 20°C or below at night) between summer and autumn triggers flowering. Outdoor summer management naturally provides this temperature differential.

How to Apply Fertilizer

During the growing season (spring through autumn), apply liquid fertilizer (for flowers/fruit or orchid-specific) every two weeks, alternating with regular watering. Reduce to monthly application in winter.

Vanda and Mokara take time to adjust to their unique cultivation style, but once familiar, management is surprisingly simple. The moment a flowering stem emerges from a well-developed plant and blooms is incomparable joy.