Vanda Vanda orchids have large and colourful flowers. Although they can be grown indoors they are more suitable for a heated greenhouse. Vandas are not good plants for beginners as the conditions they need are difficult to maintain indoors but they will reward you with long lasting colourful flowers.
Temperature: Vanda thrive best between 60°F (15°C) and 90°F (32°C) but will tolerate slightly higher or lower temperatures. The temperature should never drop below 50°F (10°C).
Humidity: They like a very humid atmosphere. Place them above a bowl of damp gravel.
Light: Vanda are light loving plants and should be grown as near the greenhouse roof as possible, avoiding any draughts.
Watering and feeding: Water heavily until the roots turn green; light misting should be avoided. Once green, leave to dry out until the roots turn back to white. Feed throughout the year immediately after every fifth watering. Do not feed when dry.
Potting: Best kept bare rooted to avoid disturbance. Those in pots need special care and it is best to use a medium that does not rot such as hardwood cubes which should last 15-20 years.
A typical Vanda
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