Fertilising guide
How to fertilise Fukien Tea Bonsai (Carmona retusa)— schedule & NPK
Also called Fukien tea, Philippine tea, Carmona bonsai.
More about fukien tea bonsai
About Fukien Tea Bonsai
Carmona retusa · also called Fukien tea, Philippine tea · houseplant
Fukien tea is a tropical evergreen grown as an indoor bonsai, with small glossy dark leaves dotted with tiny white hairs, year-round white flowers, and red berries. It is more demanding than ficus, needing high light, steady warmth, humidity and careful watering. Sensitive to cold and drying out, it rewards consistent care with delicate flowers and fine ramification.
Growth habit: Slow-to-moderate tropical evergreen shrub trained as bonsai; develops a gnarled trunk, fine twiggy ramification, small leathery leaves, and near year-round white flowers followed by red drupes.
Watch for — Chlorosis in dry, dark conditions: Yellowing leaves come from too little light, low humidity or nutrient shortage; brighten the position, raise humidity and resume regular feeding.
What fertiliser fukien tea bonsai actually wants — and why
Fukien Tea Bonsai 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 fukien tea bonsai: 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 fukien tea bonsai, 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 fukien tea bonsai:
Feed every 2-4 weeks during active growth with a balanced liquid bonsai fertiliser at half to full strength, easing off in the darker winter months. Consistent light feeding supports continuous flowering and recovery from pruning. 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 fukien tea bonsai 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 fukien tea bonsai
Half strength is the safe default for fukien tea bonsai — 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 fukien tea bonsai first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the fukien tea bonsai watering schedule.
Signs you are over-feeding fukien tea bonsai
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for fukien tea bonsai:
- 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 fukien tea bonsai
- 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 fukien tea bonsai care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of fukien tea bonsai 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 fukien tea bonsai
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 fukien tea bonsai — frequently asked questions
What fertiliser does fukien tea bonsai 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. Fukien Tea Bonsai 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 fukien tea bonsai?
Feed every 2-4 weeks during active growth with a balanced liquid bonsai fertiliser at half to full strength, easing off in the darker winter months. Consistent light feeding supports continuous flowering and recovery from pruning. Feed every 2-4 weeks during active growth with a balanced liquid bonsai fertiliser at half to full strength, easing off in the darker winter months. Consistent light feeding supports continuous flowering and recovery from pruning. 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 fukien tea bonsai?
Half strength is the safe default for fukien tea bonsai — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding fukien tea bonsai 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 fukien tea bonsai 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 fukien tea bonsai?
Flush the pot of fukien tea bonsai 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
- Fukien Tea Bonsai care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water fukien tea bonsai — 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 3899 fertilising guides in the Growli library