Fertilising guide
How to fertilise Small-leaf Lipstick Plant (Aeschynanthus parvifolius)— schedule & NPK
Also called Small-leaf Lipstick Plant, Small-leaved Basket Plant.
More about small-leaf lipstick plant
About Small-leaf Lipstick Plant
Aeschynanthus parvifolius · also called Small-leaf Lipstick Plant, Small-leaved Basket Plant · tropical
Aeschynanthus parvifolius is an epiphytic trailing plant from the humid rainforests of Southeast Asia, bearing notably smaller leaves than the more common lipstick vine species while still producing the characteristic tubular red flowers that emerge from dark calyces. It excels in hanging baskets where its slender, trailing stems can cascade freely. High humidity and consistently warm temperatures are the most critical care requirements for this species. The ASPCA lists Aeschynanthus (lipstick plant) as non-toxic to cats and dogs.
Growth habit: Trailing epiphytic evergreen with slender stems bearing small, paired, glossy leaves.
What fertiliser small-leaf lipstick plant actually wants — and why
Small-leaf Lipstick Plant 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 small-leaf lipstick plant: 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 small-leaf lipstick plant, 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 small-leaf lipstick plant:
Apply a half-strength balanced liquid fertiliser every two weeks from spring through summer; cease feeding in winter. Treat that as sparingly through the growing season 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 small-leaf lipstick plant 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 small-leaf lipstick plant
Half strength is the safe default for small-leaf lipstick plant — 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 small-leaf lipstick plant first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the small-leaf lipstick plant watering schedule.
Signs you are over-feeding small-leaf lipstick plant
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for small-leaf lipstick plant:
- 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 small-leaf lipstick plant
- 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 small-leaf lipstick plant care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of small-leaf lipstick plant 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 small-leaf lipstick plant
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 small-leaf lipstick plant — frequently asked questions
What fertiliser does small-leaf lipstick plant 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. Small-leaf Lipstick Plant 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 small-leaf lipstick plant?
Apply a half-strength balanced liquid fertiliser every two weeks from spring through summer; cease feeding in winter. Apply a half-strength balanced liquid fertiliser every two weeks from spring through summer; cease feeding in winter. Treat that as sparingly through the growing season 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 small-leaf lipstick plant?
Half strength is the safe default for small-leaf lipstick plant — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding small-leaf lipstick plant 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 small-leaf lipstick plant 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 small-leaf lipstick plant?
Flush the pot of small-leaf lipstick plant 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
- Small-leaf Lipstick Plant care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water small-leaf lipstick plant — 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 dwarf greenstripe bamboo
- How to fertilise simon bamboo
- How to fertilise broadleaf bamboo
- All 10153 fertilising guides in the Growli library