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.