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Fertilising guide

How to fertilise African Liana Sundew (Triphyophyllum peltatum)— schedule & NPK

Also called African Liana Sundew, Liana Sundew.

More about african liana sundew

About African Liana Sundew

Triphyophyllum peltatum · also called African Liana Sundew, Liana Sundew · tropical

Triphyophyllum peltatum is a facultatively carnivorous woody liana from the tropical rainforests of Guinea, Ivory Coast, Liberia, and Sierra Leone, and is the largest confirmed carnivorous plant in the world, capable of reaching 60 m in length at maturity. It expresses carnivory only when phosphorus is deficient, producing sticky glandular leaves that trap insects; at other life stages it bears non-carnivorous strap-like or climbing leaves. It is extremely rare in cultivation — maintained only at a handful of botanical gardens — and requires a consistently warm, humid tropical greenhouse. The plant contains naphthylisoquinoline alkaloids; it is not listed on the ASPCA database and must be treated as potentially harmful to pets.

Growth habit: Woody liana passing through three leaf forms: juvenile strap-like non-carnivorous leaves, followed by long sticky glandular carnivorous leaves, then long twining climbing stems bearing small hooked non-carnivorous leaves.

Watch for — Failure to enter carnivorous phase: The plant only produces glandular, insect-catching leaves when phosphorus is limiting — growing it in nutrient-rich compost or with regular fertiliser suppresses carnivory entirely; use a lean, peat-based medium and withhold phosphorus supplements.

What fertiliser african liana sundew actually wants — and why

African Liana Sundew 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 african liana sundew: 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 african liana sundew, 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 african liana sundew:

Provide minimal fertiliser — the carnivorous phase satisfies phosphorus needs from prey; supplemental feeding is not required and excess nutrients suppress the formation of carnivorous leaves. Treat that as sparingly through the growing season 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 african liana sundew 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 african liana sundew

Half strength is the safe default for african liana sundew — 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 african liana sundew first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the african liana sundew watering schedule.

Signs you are over-feeding african liana sundew

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for african liana sundew:

Signs you are under-feeding african liana sundew

If the symptoms point at watering, light or roots rather than nutrition, the full african liana sundew care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

Flush the pot of african liana sundew 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 african liana sundew

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 african liana sundew — frequently asked questions

What fertiliser does african liana sundew 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. African Liana Sundew 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 african liana sundew?

Provide minimal fertiliser — the carnivorous phase satisfies phosphorus needs from prey; supplemental feeding is not required and excess nutrients suppress the formation of carnivorous leaves. Provide minimal fertiliser — the carnivorous phase satisfies phosphorus needs from prey; supplemental feeding is not required and excess nutrients suppress the formation of carnivorous leaves. Treat that as sparingly through the growing season 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 african liana sundew?

Half strength is the safe default for african liana sundew — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.

What does over-feeding african liana sundew 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 african liana sundew 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 african liana sundew?

Flush the pot of african liana sundew 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.

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