Fertilising guide

How to fertilise Pilea glauca 'Aquamarine' (Grey Baby Tears) (Pilea glauca)— schedule & NPK

Also called Grey baby tears, Aquamarine pilea, Silver sparkle pilea, Grey artillery plant, Pilea libanensis.

More about pilea glauca 'aquamarine' (grey baby tears)

About Pilea glauca 'Aquamarine' (Grey Baby Tears)

Pilea glauca · also called Grey baby tears, Aquamarine pilea · houseplant

Pilea glauca 'Aquamarine', or grey baby tears, is a delicate trailing houseplant prized for its tiny blue-grey leaves on wiry red stems. Give it bright indirect light, evenly moist (never soggy) soil and warmth above 10C. It loves humidity and terrariums. ASPCA-clean genus, so it is treated as pet-safe.

Growth habit: Low, spreading and trailing. In the wild it creeps as a groundcover; indoors the wiry, red-tinged stems cascade, making it a natural for hanging baskets, shelf edges and terrariums.

What fertiliser pilea glauca 'aquamarine' (grey baby tears) actually wants — and why

Pilea glauca 'Aquamarine' (Grey Baby Tears) 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 glauca 'aquamarine' (grey baby tears): 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 glauca 'aquamarine' (grey baby tears), 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 glauca 'aquamarine' (grey baby tears):

Feed monthly through spring and summer with a balanced houseplant fertiliser diluted to half strength. Skip feeding in autumn and winter when growth slows, as the fine roots are easily burned by excess salts. 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 glauca 'aquamarine' (grey baby tears) 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 glauca 'aquamarine' (grey baby tears)

Half strength is the safe default for pilea glauca 'aquamarine' (grey baby tears) — 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 glauca 'aquamarine' (grey baby tears) first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the pilea glauca 'aquamarine' (grey baby tears) watering schedule.

Signs you are over-feeding pilea glauca 'aquamarine' (grey baby tears)

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for pilea glauca 'aquamarine' (grey baby tears):

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 glauca 'aquamarine' (grey baby tears)

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 glauca 'aquamarine' (grey baby tears) care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

Flush the pot of pilea glauca 'aquamarine' (grey baby tears) 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 glauca 'aquamarine' (grey baby tears)

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 glauca 'aquamarine' (grey baby tears) — frequently asked questions

What fertiliser does pilea glauca 'aquamarine' (grey baby tears) 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 glauca 'Aquamarine' (Grey Baby Tears) 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 glauca 'aquamarine' (grey baby tears)?

Feed monthly through spring and summer with a balanced houseplant fertiliser diluted to half strength. Skip feeding in autumn and winter when growth slows, as the fine roots are easily burned by excess salts. Feed monthly through spring and summer with a balanced houseplant fertiliser diluted to half strength. Skip feeding in autumn and winter when growth slows, as the fine roots are easily burned by excess salts. 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 glauca 'aquamarine' (grey baby tears)?

What does over-feeding pilea glauca 'aquamarine' (grey baby tears) 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 glauca 'aquamarine' (grey baby tears) 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 glauca 'aquamarine' (grey baby tears)?