Fertilising guide
How to fertilise Pilea libanensis (Pilea libanensis)— schedule & NPK
Also called grey artillery plant, silver pilea.
More about pilea libanensis
About Pilea libanensis
Pilea libanensis · also called grey artillery plant, silver pilea · houseplant
Pilea libanensis is a delicate trailing pilea with tiny blue-grey succulent-like leaves on reddish stems, ideal for hanging baskets and shelf edges. It thrives in bright indirect light and lightly moist, fast-draining soil. Fast-growing and forgiving, it forms a dense fine-textured cascade. ASPCA-listed as non-toxic to cats and dogs.
Growth habit: Low, spreading and trailing, with wiry reddish stems carrying densely packed tiny rounded leaves that cascade over a pot rim.
What fertiliser pilea libanensis actually wants — and why
Pilea libanensis 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 pilea libanensis: 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 pilea libanensis, 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 pilea libanensis:
Feed monthly through spring and summer with a balanced liquid houseplant fertiliser at half strength. Pause feeding in autumn and winter when growth slows. This light feeder is easily scorched by full-strength fertiliser. Treat that as monthly 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 pilea libanensis 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 pilea libanensis
Half strength is the safe default for pilea libanensis — 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 pilea libanensis first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the pilea libanensis watering schedule.
Signs you are over-feeding pilea libanensis
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for pilea libanensis:
- 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 pilea libanensis
- 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 pilea libanensis care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of pilea libanensis 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 pilea libanensis
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 pilea libanensis — frequently asked questions
What fertiliser does pilea libanensis 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. Pilea libanensis 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 pilea libanensis?
Feed monthly through spring and summer with a balanced liquid houseplant fertiliser at half strength. Pause feeding in autumn and winter when growth slows. This light feeder is easily scorched by full-strength fertiliser. Feed monthly through spring and summer with a balanced liquid houseplant fertiliser at half strength. Pause feeding in autumn and winter when growth slows. This light feeder is easily scorched by full-strength fertiliser. Treat that as monthly 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 pilea libanensis?
Half strength is the safe default for pilea libanensis — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding pilea libanensis 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 pilea libanensis 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 pilea libanensis?
Flush the pot of pilea libanensis 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
- Pilea libanensis care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water pilea libanensis — 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