Ficus Bonsai Care

A Ficus bonsai, such as the Ficus retusa and ginseng, has thick aerial roots (lianes) and glossy dark green leaves.

It often forms a sturdy trunk shape with characteristic knobs

Location

Place the Ficus indoors in a bright spot, preferably near a south-, east-, or west-facing window.

In summer it can be kept outside, as long as it does not get colder than about 15 °C at night

Keep temperature fluctuations limited; ideally between 17 – 23 °C

Water gift

Keep the soil slightly moist but not soaking wet; water as soon as the topsoil dries out slightly

Irrigate more often in summer, less in winter

Use water at room temperature (±5 °C difference is fine)

Increase humidity by spraying leaves or placing a water dish with pebbles under the pot

Power supply

During the growing season (spring to fall), feed liquid bonsai fertilizer every 2 weeks or once a month.

In winter, additional fertilization every 4 weeks at a lower dosage is sufficient

Pruning and wiring

Regularly cut back new shoots to 2 – 4 leaves once they reach 6 – 10

Shape and wire especially during the growth period; wire allows quick cutting (remove after approx. 30 days)

Use sharp pruning tools; the latex from the leaves helps wound healing, so paste is not necessary.

Repotting

Repot the bonsai every 2–3 years in spring, or annually if it is less than 10 years old.

Prune roots when repotting; use well-draining, fine bonsai soil (e.g., akadama + lava (substrate) + 20%…)

Pests and disease

Overwatering or poor ventilation can lead to mold or root rot

Common pests include spider mites, mealy bugs, or scale insects; check regularly and treat early (wax, alcohol, neem oil)

Leaves that fall off or turn yellow often indicate stress due to water quantity, light or temperature