Ficus microcarpa Ginseng Terrarium: a compact, sculptural bonsai-style ficus with thick, bulbous above-ground roots and glossy, oval green leaves. Low-maintenance and slow-growing, it adds a striking, architectural focal point to desks, shelves, or tabletop gardens. Suitable for beginners with occasional pruning to maintain shape.

Light

• Bright, indirect light is best. Place the terrarium where it gets strong but diffused light (near an east- or north-facing window, or a few feet back from a bright south/west window).

• Avoid direct midday sun; glass can magnify light and burn leaves.

• If natural light is limited, use a full-spectrum grow light on a 10–14 hour daily schedule.

Temperature

• Keep temperature steady between 65–80°F (18–27°C).

• Avoid cold drafts and temperatures below about 55°F (13°C).

Humidity

• Ficus Ginseng likes moderate to high humidity. A terrarium naturally raises humidity, which is beneficial.

• Aim for relative humidity around 50–70%. If condensation is heavy and constant, briefly open the terrarium to reduce humidity and improve air exchange.

• If humidity is low, mist lightly or use a humidity tray outside the closed terrarium if space allows.

Watering

• Water sparingly and carefully—terrariums reduce evaporation so overwatering is the main risk.

• Check soil moisture by touch: top 1–2 inches should be lightly dry before watering. The root ball should be just slightly moist, not soggy.

• Use room-temperature, low-salt water (rainwater or filtered if possible).

• Water from the top sparingly or bottom-water by adding water to the terrarium base and allowing uptake; remove excess water if pooling occurs.

• If you see yellowing leaves, root rot may be developing—reduce water and improve drainage/airflow.

Soil & Drainage

• Use a well-draining potting mix: blend high-quality peat or coco coir with perlite and some pine bark. A bonsai or indoor tree mix works well.

• Provide a drainage layer in closed terrariums: 1–2 inches of LECA, pebbles, or coarse gravel plus a thin layer of activated charcoal to prevent stagnation and odors.

• Keep the planting area slightly elevated above the water-collecting layer so roots aren’t sitting in water.

Airflow & Ventilation

• Good airflow prevents fungal disease. For closed terrariums, open the lid or vents periodically (every few days for an hour or two) to exchange air.

• If condensation builds up rapidly, increase ventilation frequency or slightly prop the lid to reduce humidity.

Pruning & Training

• Prune to maintain size and shape—Ficus Ginseng responds well to light pruning.

Fertilizing

• Fertilize sparingly during the growing season (spring and summer): use a balanced, water-soluble fertilizer at 1/4–1/2 recommended strength every 4–6 weeks.

• Do not overfertilize in a terrarium—build-up can damage roots and alter soil salts.

• Skip or reduce feeding in autumn and winter when growth slows.

Repotting & Maintenance

• Repot or refresh the substrate every 2–3 years or if roots become pot-bound. When repotting, prune roots slightly and replace some of the soil mix.

• Clean the terrarium glass periodically to ensure light penetration and check for algae or mold; wipe with a soft cloth and mild soapy water, rinse well.