Fertilising guide
How to fertilise Calathea Binotii (Goeppertia lietzei 'Binotii')— schedule & NPK
Also called Binot's calathea.
More about calathea binotii
About Calathea Binotii
Goeppertia lietzei 'Binotii' · also called Binot's calathea · houseplant
Goeppertia lietzei 'Binotii' is a compact prayer plant with slender, wavy-edged leaves showing alternating light and dark green feathering above and deep purple-maroon undersides. A pet-safe Brazilian tropical, it suckers freely into dense clumps. It thrives in bright indirect light, high humidity, steady warmth, and evenly moist, mineral-free, well-draining soil.
Growth habit: Compact, freely suckering clump of slender wavy-edged leaves; pronounced daily prayer movement.
Watch for — Faded or scorched leaves: Direct sun bleaches and burns the thin foliage. Keep it in bright indirect light only.
What fertiliser calathea binotii actually wants — and why
Calathea Binotii 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 calathea binotii: 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 calathea binotii, 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 calathea binotii:
Feed every 2-4 weeks in spring and summer with a balanced houseplant fertiliser at half strength. Stop in autumn and winter. Salt-sensitive, so avoid overfeeding and flush the soil occasionally to prevent tip burn. 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 calathea binotii 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 calathea binotii
Half strength is the safe default for calathea binotii — 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 calathea binotii first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the calathea binotii watering schedule.
Signs you are over-feeding calathea binotii
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for calathea binotii:
- 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 calathea binotii
- 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 calathea binotii care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of calathea binotii 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 calathea binotii
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 calathea binotii — frequently asked questions
What fertiliser does calathea binotii 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. Calathea Binotii 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 calathea binotii?
Feed every 2-4 weeks in spring and summer with a balanced houseplant fertiliser at half strength. Stop in autumn and winter. Salt-sensitive, so avoid overfeeding and flush the soil occasionally to prevent tip burn. Feed every 2-4 weeks in spring and summer with a balanced houseplant fertiliser at half strength. Stop in autumn and winter. Salt-sensitive, so avoid overfeeding and flush the soil occasionally to prevent tip burn. 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 calathea binotii?
Half strength is the safe default for calathea binotii — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding calathea binotii 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 calathea binotii 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 calathea binotii?
Flush the pot of calathea binotii 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
- Calathea Binotii care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water calathea binotii — 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