Fertilising guide
How to fertilise Utricularia bisquamata (Utricularia bisquamata)— schedule & NPK
Also called Two-scaled Bladderwort, Cape Bladderwort.
More about utricularia bisquamata
About Utricularia bisquamata
Utricularia bisquamata · also called Two-scaled Bladderwort, Cape Bladderwort · houseplant
Utricularia bisquamata is a tiny, fast-spreading terrestrial bladderwort from southern Africa, prized for its near-constant show of small white-and-yellow flowers on thread-thin stalks. It carpets damp peat with grassy leaves and microscopic suction bladders that trap soil organisms. Tough, free-flowering and almost weedy, it is an excellent beginner carnivorous plant.
Growth habit: Low, mat-forming terrestrial bladderwort that spreads quickly over wet peat and throws up wiry stalks of small flowers almost year-round; can self-seed prolifically.
Watch for — Mineral damage: Tap or mineralised water quickly stunts and kills it; only rain, distilled or RO water is safe.
What fertiliser utricularia bisquamata actually wants — and why
Utricularia bisquamata 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 utricularia bisquamata: 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 utricularia bisquamata, 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 utricularia bisquamata:
No root feeding. It traps soil protozoa and microfauna in its bladders to meet its nutrient needs; fertiliser in the medium will harm or kill it. 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 utricularia bisquamata 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 utricularia bisquamata
Half strength is the safe default for utricularia bisquamata — 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 utricularia bisquamata first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the utricularia bisquamata watering schedule.
Signs you are over-feeding utricularia bisquamata
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for utricularia bisquamata:
- 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 utricularia bisquamata
- 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 utricularia bisquamata care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of utricularia bisquamata 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 utricularia bisquamata
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 utricularia bisquamata — frequently asked questions
What fertiliser does utricularia bisquamata 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. Utricularia bisquamata 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 utricularia bisquamata?
No root feeding. It traps soil protozoa and microfauna in its bladders to meet its nutrient needs; fertiliser in the medium will harm or kill it. No root feeding. It traps soil protozoa and microfauna in its bladders to meet its nutrient needs; fertiliser in the medium will harm or kill it. 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 utricularia bisquamata?
Half strength is the safe default for utricularia bisquamata — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding utricularia bisquamata 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 utricularia bisquamata 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 utricularia bisquamata?
Flush the pot of utricularia bisquamata 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
- Utricularia bisquamata care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water utricularia bisquamata — 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