Coleus 'Frilly' Care Sheet for Closed Terrarium:
 
Plant Overview:
Coleus 'Frilly' is a cultivar known for its colorful, frilly foliage. It's a compact plant that thrives in humid environments, making it an excellent choice for closed terrariums. Proper care ensures vibrant growth and longevity.
 
Light:
Place your closed terrarium in a location with bright, indirect light. Direct sunlight can cause the terrarium to overheat, damaging the plants. If natural light is insufficient, you can supplement with artificial grow lights, providing 10-12 hours of light per day.
 
Temperature:
Maintain a consistent temperature range of 65-80°F (18-27°C) within the terrarium. Avoid placing it near drafts or heat sources such as radiators or air conditioners, as extreme temperatures can stress the plants.
 
Humidity:
Closed terrariums naturally create a humid environment, which is ideal for Coleus 'Frilly.' However, if you notice excessive condensation or mold growth, slightly open the terrarium lid to allow for air circulation. Aim for a relative humidity level of 50-70%.
 
Watering:
Water sparingly, allowing the top inch of soil to dry out between waterings. Overwatering can lead to root rot, while underwatering can cause wilting. Use a spray bottle or small watering can to moisten the soil, avoiding direct contact with the foliage to prevent fungal issues.
 
Soil:
Use a well-draining potting mix rich in organic matter. A mix formulated for tropical plants works well for Coleus 'Frilly.' Ensure the terrarium has a layer of drainage material (such as gravel or activated charcoal) at the bottom to prevent waterlogging.
 
Fertilization:
Coleus 'Frilly' benefits from occasional fertilization during the growing season (spring to early autumn). Use a balanced, water-soluble fertilizer diluted to half strength and apply every 4-6 weeks. Avoid fertilizing during the dormant winter months.
 
Pruning:
Regularly pinch back the growing tips to encourage bushier growth and prevent legginess. Remove any yellowing or dead leaves to maintain plant health and aesthetics. Pruning also helps control the size of the plant within the limited space of the terrarium.
 
Pests and Diseases:
Monitor the plant regularly for signs of pests such as aphids, mealybugs, or spider mites. If pests are detected, isolate the affected plant and treat with insecticidal soap or neem oil. Keep the terrarium clean to prevent fungal diseases, and promptly remove any diseased or decaying foliage.
 
Repotting:
Coleus 'Frilly' can outgrow its space in a closed terrarium over time. When the plant becomes too large or root-bound, carefully remove it from the terrarium, gently loosen the roots, and repot into a larger container with fresh soil. Trim any excessively long roots and prune the foliage as needed before returning it to the terrarium.
 
By following these care guidelines, you can enjoy the beauty of Coleus 'Frilly' thriving in your closed terrarium for years to come.