Fertilising guide
How to fertilise Aeschynanthus pulcher (Aeschynanthus pulcher)— schedule & NPK
Also called royal red bugler, beautiful lipstick plant.
More about aeschynanthus pulcher
About Aeschynanthus pulcher
Aeschynanthus pulcher · also called royal red bugler, beautiful lipstick plant · flowering
Aeschynanthus pulcher, the royal red bugler, is a trailing epiphytic lipstick plant from Southeast Asia with glossy green leaves and bright scarlet tubular flowers set in green-to-purplish calyces. A popular basket plant, it flowers freely given bright indirect light, warmth, moderate humidity and a slightly snug pot, and dislikes cold draughts and soggy roots.
Growth habit: Trailing, semi-woody epiphytic perennial with cascading stems of waxy leaves and tip clusters of tubular red flowers; a natural choice for hanging baskets.
Watch for — Failure to flower: Low light and an oversized pot suppress blooming. Give bright indirect light, keep the plant slightly pot-bound, and feed with high-potash liquid in summer.
What fertiliser aeschynanthus pulcher actually wants — and why
Aeschynanthus pulcher is a heavy-blooming flower with a big appetite — a regular high-potash feed through the season is what drives a long, dense display.
A high-potassium ("high-potash") flowering feed — tomato-style or a dedicated bloom/rose feed. Potassium powers flowering; a high-nitrogen feed gives you a leafy plant with disappointing bloom.
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 aeschynanthus pulcher: 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 aeschynanthus pulcher, 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 aeschynanthus pulcher:
Feed every 2-4 weeks during spring and summer with a balanced or high-potash liquid fertiliser at half strength to support flowering. Reduce to occasional winter feeding as growth slows. For a hungry bloomer that means feeding regularly — every 2-4 weeks — right through flowering across the main season (spring through early autumn), tapering as blooming ends.
The dormant-season rule matters more than the exact interval: skip feeding entirely when aeschynanthus pulcher 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 aeschynanthus pulcher
Follow the flowering-feed label rate for aeschynanthus pulcher, or half strength if feeding very frequently. These plants genuinely use the nutrients — under-feeding shows up fast as a thin display.
Feeding always goes onto already-damp soil, never dry roots — water aeschynanthus pulcher first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the aeschynanthus pulcher watering schedule.
Signs you are over-feeding aeschynanthus pulcher
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for aeschynanthus pulcher:
- Lots of lush leaves but few flowers (too much nitrogen).
- Scorched leaf edges and salt crust from too-strong or too-frequent feeds.
- Soft, sappy growth prone to aphids and mildew.
Signs you are under-feeding aeschynanthus pulcher
- Sparse, small, short-lived flowers and pale foliage.
- A tired plant that stops blooming early in the season.
- Weak growth and poor repeat-flowering after the first flush.
If the symptoms point at watering, light or roots rather than nutrition, the full aeschynanthus pulcher care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Container-grown aeschynanthus pulcher accumulates feed salts fast with frequent feeding — water until it drains each time and flush pots with plain water every few weeks to prevent scorch.
Organic vs synthetic feeds for aeschynanthus pulcher
Organic options
A liquid comfrey or seaweed feed (naturally potassium-rich) plus compost or well-rotted manure as a mulch. UK: comfrey feed, organic Tomorite, or rose feed; US: Espoma Rose-tone or Neptune's Harvest. Feeds and improves soil.
Synthetic / liquid feeds
A high-potash flowering feed on a regular cadence — UK: Tomorite (Levington), Phostrogen or a specialist rose feed; US: Miracle-Gro Bloom Booster or a rose food. Fast, reliable bloom response.
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 aeschynanthus pulcher — frequently asked questions
What fertiliser does aeschynanthus pulcher need?
A high-potassium ("high-potash") flowering feed — tomato-style or a dedicated bloom/rose feed. Potassium powers flowering; a high-nitrogen feed gives you a leafy plant with disappointing bloom. Aeschynanthus pulcher is a heavy-blooming flower with a big appetite — a regular high-potash feed through the season is what drives a long, dense display.
How often should I feed aeschynanthus pulcher?
Feed every 2-4 weeks during spring and summer with a balanced or high-potash liquid fertiliser at half strength to support flowering. Reduce to occasional winter feeding as growth slows. Feed every 2-4 weeks during spring and summer with a balanced or high-potash liquid fertiliser at half strength to support flowering. Reduce to occasional winter feeding as growth slows. For a hungry bloomer that means feeding regularly — every 2-4 weeks — right through flowering across the main season (spring through early autumn), tapering as blooming ends.
What strength of feed for aeschynanthus pulcher?
Follow the flowering-feed label rate for aeschynanthus pulcher, or half strength if feeding very frequently. These plants genuinely use the nutrients — under-feeding shows up fast as a thin display.
What does over-feeding aeschynanthus pulcher look like?
Lots of lush leaves but few flowers (too much nitrogen). Scorched leaf edges and salt crust from too-strong or too-frequent feeds. Soft, sappy growth prone to aphids and mildew. Using a high-nitrogen general feed on aeschynanthus pulcher is the headline mistake — you grow a big leafy plant with few flowers. The second is simply under-feeding a genuinely hungry bloomer and getting a sparse, short display.
Should I flush the soil of aeschynanthus pulcher?
Container-grown aeschynanthus pulcher accumulates feed salts fast with frequent feeding — water until it drains each time and flush pots with plain water every few weeks to prevent scorch.
Keep reading
- Aeschynanthus pulcher care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water aeschynanthus pulcher — 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 3899 fertilising guides in the Growli library