Fertilising guide
How to fertilise Ficus microcarpa (Ficus microcarpa)— schedule & NPK
Also called Chinese Banyan, Indian Laurel Fig.
More about ficus microcarpa
About Ficus microcarpa
Ficus microcarpa · also called Chinese Banyan, Indian Laurel Fig · houseplant
Ficus microcarpa is a glossy-leaved evergreen fig prized as an indoor bonsai for its thick, fused aerial roots and dense canopy. It thrives in bright, stable light, dislikes sudden moves, and drops leaves when stressed. A vigorous, forgiving subject once settled, it tolerates pruning hard and back-buds readily, rewarding patient ramification work.
Growth habit: Evergreen broadleaf tree with a thick, smooth pale trunk, dense glossy canopy, and a strong tendency to fuse roots and produce aerial roots in humid conditions; vigorous and quick to back-bud after pruning.
Watch for — Pale, oversized leaves: A sign of too little light; growth stretches and internodes lengthen. Move to a brighter position to restore compact, dark foliage.
What fertiliser ficus microcarpa actually wants — and why
Ficus microcarpa is an easy, light foliage feeder — a half-strength balanced liquid feed through the growing months keeps it green without forcing weak, sappy growth.
A balanced general houseplant feed (roughly even N-P-K) is exactly right — it is grown for foliage, so steady, moderate nitrogen for healthy leaves is the goal, not a bloom or root formula.
For the language behind the three numbers on the bottle — what nitrogen, phosphorus and potassium each do — see the NPK ratio explained entry. The short version for ficus microcarpa: match the feed to the job the plant is doing right now, not to a generic “plant food” on the shelf.
How often to feed ficus microcarpa, and which months
Feeding only earns its keep while the plant is in active growth and can use the nutrients — pour feed into a dormant or low-light plant and it simply builds up as root-burning salt. For ficus microcarpa:
Feed every 2-4 weeks through spring and summer with a balanced liquid fertiliser at half to full strength, or use a slow-release bonsai feed. Taper off in autumn and feed sparingly, if at all, in winter when growth slows. Treat that as every 2-4 weeks between spring through early autumn (roughly March to September); ease off in autumn and stop entirely in the low light of winter.
The dormant-season rule matters more than the exact interval: skip feeding entirely when ficus microcarpa is resting. For the wider context on indoor feeding rhythms across the seasons, the houseplant fertiliser schedule walks through the year month by month.
What strength to mix for ficus microcarpa
Half strength is the safe default for ficus microcarpa — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
Feeding always goes onto already-damp soil, never dry roots — water ficus microcarpa first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the ficus microcarpa watering schedule.
Signs you are over-feeding ficus microcarpa
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for ficus microcarpa:
- Brown, crispy leaf tips and edges with no sign of underwatering.
- A white, crusty salt deposit on the soil surface or pot rim.
- Weak, pale, stretched new growth that flops.
- Lower leaves yellow and drop while the soil is correctly watered.
Signs you are under-feeding ficus microcarpa
- Uniformly pale or yellow-green leaves, oldest first.
- Noticeably small new leaves and stalled growth in good light and season.
- A generally tired, lacklustre look despite correct watering and light.
If the symptoms point at watering, light or roots rather than nutrition, the full ficus microcarpa care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of ficus microcarpa with plain water until it runs freely from the base every couple of months in the feeding season — it washes out the fertiliser salts that cause brown tips.
Organic vs synthetic feeds for ficus microcarpa
Organic options
A diluted seaweed or worm-casting feed, or fish emulsion if you can tolerate the smell indoors. UK: Westland or Baby Bio Organic, dilute seaweed; US: Espoma Indoor! or Neptune's Harvest fish & seaweed. Slow, gentle and hard to overdo.
Synthetic / liquid feeds
A general-purpose houseplant liquid at half strength — UK: Baby Bio, Westland Houseplant Feed or Phostrogen; US: Miracle-Gro Indoor Plant Food or Schultz. Convenient and fast-acting; the only risk is overdoing it.
Brand names are examples, not endorsements, and UK and US ranges differ — check the label’s own NPK and dilution rate, since formulations change.
Fertilising ficus microcarpa — frequently asked questions
What fertiliser does ficus microcarpa need?
A balanced general houseplant feed (roughly even N-P-K) is exactly right — it is grown for foliage, so steady, moderate nitrogen for healthy leaves is the goal, not a bloom or root formula. Ficus microcarpa is an easy, light foliage feeder — a half-strength balanced liquid feed through the growing months keeps it green without forcing weak, sappy growth.
How often should I feed ficus microcarpa?
Feed every 2-4 weeks through spring and summer with a balanced liquid fertiliser at half to full strength, or use a slow-release bonsai feed. Taper off in autumn and feed sparingly, if at all, in winter when growth slows. Feed every 2-4 weeks through spring and summer with a balanced liquid fertiliser at half to full strength, or use a slow-release bonsai feed. Taper off in autumn and feed sparingly, if at all, in winter when growth slows. Treat that as every 2-4 weeks between spring through early autumn (roughly March to September); ease off in autumn and stop entirely in the low light of winter.
What strength of feed for ficus microcarpa?
Half strength is the safe default for ficus microcarpa — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding ficus microcarpa look like?
Brown, crispy leaf tips and edges with no sign of underwatering. A white, crusty salt deposit on the soil surface or pot rim. Weak, pale, stretched new growth that flops. Lower leaves yellow and drop while the soil is correctly watered. Feeding ficus microcarpa year-round on a fixed schedule, including dark winter months, is the most common mistake — it cannot use the nutrients in low light and the surplus simply burns the roots and crusts the soil.
Should I flush the soil of ficus microcarpa?
Flush the pot of ficus microcarpa with plain water until it runs freely from the base every couple of months in the feeding season — it washes out the fertiliser salts that cause brown tips.
Keep reading
- Ficus microcarpa care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water ficus microcarpa — the watering schedule
- The houseplant fertiliser schedule — feeding through the year
- NPK ratio explained — what the three numbers on the bottle mean
- How to fertilise snake plant
- How to fertilise dracaena
- How to fertilise peperomia
- All 5561 fertilising guides in the Growli library