Fertilising guide
How to fertilise Painted Lady (Philodendron 'Painted Lady')— schedule & NPK
Also called Painted Lady, Painted Lady Philodendron.
More about painted lady
About Painted Lady
Philodendron 'Painted Lady' · also called Painted Lady, Painted Lady Philodendron · houseplant
Philodendron 'Painted Lady' is a hybrid climber whose new leaves emerge bright chartreuse-yellow on candy-pink petioles, maturing to speckled green. A slow, steady grower, it loves warmth, bright indirect light, and a support to climb. Larger leaves develop as it ascends. All parts are toxic to cats and dogs.
Growth habit: Climbing aroid with distinctive yellow-green stems and pink petioles; leaves enlarge as it climbs a support.
Watch for — Brown leaf tips: Low humidity or fertiliser salt buildup; raise humidity and flush the pot with plain water.
What fertiliser painted lady actually wants — and why
Painted Lady 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 painted lady: 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 painted lady, 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 painted lady:
Feed every 2-4 weeks in spring and summer with a balanced liquid fertiliser at half strength to fuel the colourful new growth. Reduce or stop in winter. Avoid over-feeding, which can brown leaf tips with salt. Treat that as every 2-4 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 painted lady 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 painted lady
Half strength is the safe default for painted lady — 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 painted lady first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the painted lady watering schedule.
Signs you are over-feeding painted lady
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for painted lady:
- 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 painted lady
- 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 painted lady care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of painted lady 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 painted lady
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 painted lady — frequently asked questions
What fertiliser does painted lady 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. Painted Lady 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 painted lady?
Feed every 2-4 weeks in spring and summer with a balanced liquid fertiliser at half strength to fuel the colourful new growth. Reduce or stop in winter. Avoid over-feeding, which can brown leaf tips with salt. Feed every 2-4 weeks in spring and summer with a balanced liquid fertiliser at half strength to fuel the colourful new growth. Reduce or stop in winter. Avoid over-feeding, which can brown leaf tips with salt. Treat that as every 2-4 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 painted lady?
Half strength is the safe default for painted lady — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding painted lady 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 painted lady 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 painted lady?
Flush the pot of painted lady 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
- Painted Lady care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water painted lady — 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 snake plant
- How to fertilise dracaena
- How to fertilise peperomia
- All 2464 fertilising guides in the Growli library