Fertilising guide
How to fertilise Lace Flower Vine (Episcia dianthiflora)— schedule & NPK
Also called Lace Flower, Alsobia dianthiflora.
More about lace flower vine
About Lace Flower Vine
Episcia dianthiflora · also called Lace Flower, Alsobia dianthiflora · flowering
Lace Flower Vine (Episcia dianthiflora, syn. Alsobia dianthiflora) is a trailing gesneriad with small, velvety green leaves and showy, deeply fringed white flowers spotted at the throat. It spreads by stolons into a soft mat, thrives warm and humid in baskets or terrariums, and dislikes cold and wet feet. ASPCA-listed as non-toxic to cats and dogs.
Growth habit: Low, spreading, stoloniferous trailer that runs out plantlet-tipped stolons, forming a creeping mat or cascading from a basket.
Watch for — No flowers: Insufficient light or feeding favours foliage and runners over the fringed white blooms. Provide brighter indirect light and a dilute feed during the growing season.
What fertiliser lace flower vine actually wants — and why
Lace Flower Vine 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 lace flower vine: 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 lace flower vine, 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 lace flower vine:
Feed every 2 weeks through spring and summer with a balanced liquid fertiliser at quarter to half strength; the roots are sensitive to salts. Taper to monthly or none in winter as light and warmth decline. Treat that as every 2 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 lace flower vine 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 lace flower vine
Half strength is the safe default for lace flower vine — 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 lace flower vine first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the lace flower vine watering schedule.
Signs you are over-feeding lace flower vine
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for lace flower vine:
- 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 lace flower vine
- 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 lace flower vine care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of lace flower vine 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 lace flower vine
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 lace flower vine — frequently asked questions
What fertiliser does lace flower vine 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. Lace Flower Vine 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 lace flower vine?
Feed every 2 weeks through spring and summer with a balanced liquid fertiliser at quarter to half strength; the roots are sensitive to salts. Taper to monthly or none in winter as light and warmth decline. Feed every 2 weeks through spring and summer with a balanced liquid fertiliser at quarter to half strength; the roots are sensitive to salts. Taper to monthly or none in winter as light and warmth decline. Treat that as every 2 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 lace flower vine?
Half strength is the safe default for lace flower vine — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding lace flower vine 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 lace flower vine 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 lace flower vine?
Flush the pot of lace flower vine 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
- Lace Flower Vine care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water lace flower vine — 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 peace lily
- How to fertilise bird of paradise
- How to fertilise hoya
- All 1284 fertilising guides in the Growli library