Maxillaria variabilis

Maxillaria variabilis (Epiphytic orchid, lot of 15 in vitro plants)

1. Identification and Origin

• Scientific name: Maxillaria variabilis Bateman ex Lindl.

• Origin: Rainforests of Central America (Costa Rica, Panama, Nicaragua) and northwestern South America (Colombia, Ecuador).

• Natural habitat: Epiphytic, often found on tree branches and trunks in shaded and well-ventilated areas, between 500 and 1,800 m in altitude.

3. Cultivation Conditions (Lot of 15 in vitro plants)

Temperature

• Day: 20–26°C.

• Night: 14–16°C (significant day/night drop is important for blooming).

• To avoid: <12°C or >30°C.

Humidity

• Ideal rate: 70–85%.

• Tip: Maintain high and constant humidity, especially during the active growth phase. Use a misting system for the in vitro plantlets.

Light

• Intensity: Filtered to low light (north window or dense shading in a greenhouse).

• To avoid: Direct exposure to the sun.

Watering

• In vitro: Keep the medium slightly moist, avoid standing water.

• Post-deflasking / Post-transplanting: Regular watering, allow the substrate to dry out slightly between waterings.

Fertilizer

• In vitro: Diluted nutrient solution (1/4 dose) every 2 weeks.

• Post-deflasking / Post-transplanting: Orchid fertilizer (1/2 dose) during active growth.

Ventilation

• In vitro: Light air circulation to prevent mold.

• Acclimation: Gradually increase ventilation after transplanting.

Repotting

• Substrate: Fine bark + perlite + charcoal to ensure good drainage.