Fertilising guide
How to fertilise Anoectochilus roxburghii (Anoectochilus roxburghii)— schedule & NPK
Also called Roxburgh's Jewel Orchid, King of Jewel Orchids.
More about anoectochilus roxburghii
About Anoectochilus roxburghii
Anoectochilus roxburghii · also called Roxburgh's Jewel Orchid, King of Jewel Orchids · houseplant
Anoectochilus roxburghii is a prized terrestrial jewel orchid grown for its dark velvety leaves laced with an intricate gold or coppery vein network. Native to Asian forest floors, it is more demanding than Ludisia, needing constant warmth, high humidity and an airy, moisture-retentive medium. Small white-and-yellow flowers appear on short spikes, but the foliage is the main draw.
Growth habit: Low creeping terrestrial orchid with a fleshy, prostrate rhizome that roots along its length, sending up short upright stems crowned with a rosette of patterned leaves.
Watch for — Brown crispy leaf margins: Low humidity or fertiliser-salt buildup; raise humidity, flush the medium and use low-mineral water.
What fertiliser anoectochilus roxburghii actually wants — and why
Anoectochilus roxburghii 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 anoectochilus roxburghii: 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 anoectochilus roxburghii, 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 anoectochilus roxburghii:
Feed sparingly with a quarter-strength balanced orchid fertiliser every 2-4 weeks in spring and summer; this jewel orchid is sensitive to fertiliser salts, so dilute well and flush the medium regularly. Pause feeding in winter. 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 anoectochilus roxburghii 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 anoectochilus roxburghii
Half strength is the safe default for anoectochilus roxburghii — 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 anoectochilus roxburghii first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the anoectochilus roxburghii watering schedule.
Signs you are over-feeding anoectochilus roxburghii
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for anoectochilus roxburghii:
- 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 anoectochilus roxburghii
- 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 anoectochilus roxburghii care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of anoectochilus roxburghii 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 anoectochilus roxburghii
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 anoectochilus roxburghii — frequently asked questions
What fertiliser does anoectochilus roxburghii 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. Anoectochilus roxburghii 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 anoectochilus roxburghii?
Feed sparingly with a quarter-strength balanced orchid fertiliser every 2-4 weeks in spring and summer; this jewel orchid is sensitive to fertiliser salts, so dilute well and flush the medium regularly. Pause feeding in winter. Feed sparingly with a quarter-strength balanced orchid fertiliser every 2-4 weeks in spring and summer; this jewel orchid is sensitive to fertiliser salts, so dilute well and flush the medium regularly. Pause feeding in winter. 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 anoectochilus roxburghii?
Half strength is the safe default for anoectochilus roxburghii — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding anoectochilus roxburghii 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 anoectochilus roxburghii 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 anoectochilus roxburghii?
Flush the pot of anoectochilus roxburghii 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
- Anoectochilus roxburghii care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water anoectochilus roxburghii — 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 2464 fertilising guides in the Growli library