Fertilising guide

How to fertilise Aeschynanthus lobbianus (Aeschynanthus lobbianus)— schedule & NPK

Also called lipstick plant, Lobb's lipstick vine.

More about aeschynanthus lobbianus

About Aeschynanthus lobbianus

Aeschynanthus lobbianus · also called lipstick plant, Lobb's lipstick vine · flowering

Aeschynanthus lobbianus, a lipstick plant, is a trailing epiphytic gesneriad from Southeast Asia, named for bright red tubular flowers that emerge from dark, lipstick-like calyces along cascading stems of thick, waxy leaves. It is superb in hanging baskets, flowering best with bright indirect light, warmth, moderate-to-high humidity and a slightly snug pot.

Growth habit: Trailing, semi-woody epiphytic perennial with long, cascading stems clothed in waxy leaves; produces clusters of tubular flowers at the stem tips, ideal for hanging display.

Watch for — No flowers: Too little light is the most common cause, along with a too-large pot. Provide bright indirect light, keep the plant slightly pot-bound, and feed with a high-potash liquid in summer.

What fertiliser aeschynanthus lobbianus actually wants — and why

Aeschynanthus lobbianus 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 lobbianus: 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 lobbianus, 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 lobbianus:

Feed every 2-4 weeks in spring and summer with a balanced or high-potash liquid fertiliser at half strength to promote flowering. Reduce to occasional feeding in autumn and winter when 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 lobbianus 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 lobbianus

Follow the flowering-feed label rate for aeschynanthus lobbianus, 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 lobbianus first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the aeschynanthus lobbianus watering schedule.

Signs you are over-feeding aeschynanthus lobbianus

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for aeschynanthus lobbianus:

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 lobbianus

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 lobbianus care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

Container-grown aeschynanthus lobbianus 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 lobbianus

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 lobbianus — frequently asked questions

What fertiliser does aeschynanthus lobbianus 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 lobbianus 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 lobbianus?

Feed every 2-4 weeks in spring and summer with a balanced or high-potash liquid fertiliser at half strength to promote flowering. Reduce to occasional feeding in autumn and winter when growth slows. Feed every 2-4 weeks in spring and summer with a balanced or high-potash liquid fertiliser at half strength to promote flowering. Reduce to occasional feeding in autumn and winter when 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 lobbianus?

What does over-feeding aeschynanthus lobbianus 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 lobbianus 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 lobbianus?