Fertilising guide
How to fertilise Network Calathea (Calathea Musaica) (Goeppertia kegeljanii 'Network')— schedule & NPK
Also called Network Calathea, Calathea Musaica, Mosaic Calathea, Network Plant, Network Prayer Plant.
More about network calathea (calathea musaica)
About Network Calathea (Calathea Musaica)
Goeppertia kegeljanii 'Network' · also called Network Calathea, Calathea Musaica · houseplant
The Network Calathea (Goeppertia kegeljanii 'Network') is a tropical prayer plant prized for leaves etched with a fine green mosaic. It needs bright indirect light, evenly moist soil, warmth, and high humidity, and is one of the easier calatheas. The ASPCA lists Calathea as non-toxic to cats, dogs, and horses, making it pet-safe.
Growth habit: Evergreen, clump-forming tropical perennial with an upright-to-bushy rosette of round-oval leaves. A relatively slow grower that produces dense foliage; it does not vine or trail. Like other prayer plants it shows mild nyctinasty, with leaves shifting slightly between day and night.
Watch for — Leaf scorch and pale patches: Direct midday sun bleaches and burns the foliage. Move the plant back from south- or west-facing windows or filter the light with a sheer curtain.
What fertiliser network calathea (calathea musaica) actually wants — and why
Network Calathea (Calathea Musaica) 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 network calathea (calathea musaica): 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 network calathea (calathea musaica), 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 network calathea (calathea musaica):
Feed every 4-6 weeks during the spring and summer growing season with a balanced houseplant fertiliser diluted to about half the recommended strength. Stop or greatly reduce feeding in autumn and winter when growth slows. Over-fertilising causes salt buildup and brown leaf tips. Treat that as every 4-6 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 network calathea (calathea musaica) 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 network calathea (calathea musaica)
Half strength is the safe default for network calathea (calathea musaica) — 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 network calathea (calathea musaica) first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the network calathea (calathea musaica) watering schedule.
Signs you are over-feeding network calathea (calathea musaica)
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for network calathea (calathea musaica):
- 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 network calathea (calathea musaica)
- 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 network calathea (calathea musaica) care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of network calathea (calathea musaica) 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 network calathea (calathea musaica)
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 network calathea (calathea musaica) — frequently asked questions
What fertiliser does network calathea (calathea musaica) 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. Network Calathea (Calathea Musaica) 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 network calathea (calathea musaica)?
Feed every 4-6 weeks during the spring and summer growing season with a balanced houseplant fertiliser diluted to about half the recommended strength. Stop or greatly reduce feeding in autumn and winter when growth slows. Over-fertilising causes salt buildup and brown leaf tips. Feed every 4-6 weeks during the spring and summer growing season with a balanced houseplant fertiliser diluted to about half the recommended strength. Stop or greatly reduce feeding in autumn and winter when growth slows. Over-fertilising causes salt buildup and brown leaf tips. Treat that as every 4-6 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 network calathea (calathea musaica)?
Half strength is the safe default for network calathea (calathea musaica) — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding network calathea (calathea musaica) 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 network calathea (calathea musaica) 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 network calathea (calathea musaica)?
Flush the pot of network calathea (calathea musaica) 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
- Network Calathea (Calathea Musaica) care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water network calathea (calathea musaica) — 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 389 fertilising guides in the Growli library