🌿 Coleus 'Witchcraft' Care Sheet for Terrariums
 
Introduction:
Coleus 'Witchcraft' (Plectranthus scutellarioides 'Witchcraft') is a dramatic and eye-catching cultivar featuring deep, moody foliage—often in shades of dark burgundy, near-black, or deep purple. Its bold coloring and compact growth make it a stunning addition to terrariums. To keep your 'Witchcraft' thriving in a contained environment, follow these tailored care guidelines:
 
1. Terrarium Setup:
Use a well-draining, rich potting mix ideal for foliage plants—peat-based with added perlite or fine bark.
Include a layer of charcoal beneath the soil to prevent odor and absorb excess moisture.
Best suited to semi-closed or open terrariums, as 'Witchcraft' prefers airflow and is sensitive to stagnant humidity.
 
2. Light:
Provide bright, indirect light to maintain the rich coloration of the foliage.
Avoid prolonged direct sunlight, which can cause fading or scorch the leaves.
Supplement with a grow light if natural light is low—this helps prevent legginess.
 
3. Temperature and Humidity:
Maintain a consistent temperature of 65–75°F (18–24°C).
Moderate humidity (50–60%) is ideal.
Avoid placing the terrarium near cold drafts, heaters, or unventilated areas.
 
4. Watering:
Water when the top 1–2 cm of soil feels dry—do not let the soil become soggy.
Use a narrow-spout watering can or pipette to avoid splashing leaves.
In semi-closed terrariums, check for condensation and adjust watering accordingly.
 
5. Fertilization:
Feed every 4–6 weeks during active growth (spring to early fall).
Use a balanced liquid fertilizer diluted to half strength.
Avoid fertilizing in winter unless under grow lights.
 
6. Pruning and Maintenance:
Pinch or trim tips to encourage compact, bushy growth and preserve shape.
Remove any yellow, wilted, or damaged leaves to prevent decay.
Clean any fallen debris from the substrate to avoid mold.
 
7. Air Circulation:
Although terrariums limit airflow, open the lid once per week to provide ventilation.
This helps reduce excess humidity and keeps fungal issues at bay.
 
 
8. Monitoring for pests:
Inspect regularly for spider mites, aphids, and fungus gnats, particularly in warm, damp conditions.
Treat infestations promptly with insecticidal soap or neem oil.
 
9. Repotting:
If growth slows or the roots fill the container, repot into fresh soil.
Trim roots and foliage as needed to maintain balance and fit.
 
10. Terrarium Companions:
Coleus 'Witchcraft' pairs well with other bold-foliage tropicals like Fittonia, Hypoestes, or compact ferns.
Ensure companions have similar light and moisture needs, and avoid species that prefer fully sealed environments.
 
By following these care instructions, your Coleus 'Witchcraft' will continue to enchant with its moody, dramatic leaves and rich texture. It adds a stunning contrast to terrarium arrangements and brings depth to your indoor plant display.