Fertilising guide
How to fertilise Redvein Abutilon (Abutilon pictum)— schedule & NPK
Also called Redvein Abutilon, Painted Abutilon, Red Vein Indian Mallow, Spotted Flowering Maple.
More about redvein abutilon
About Redvein Abutilon
Abutilon pictum · also called Redvein Abutilon, Painted Abutilon · flowering
Originally from Brazil, Abutilon pictum (often listed under the synonym A. striatum) is a tender tropical shrub prized for its attractive orange, salmon, or peach bell-shaped flowers with conspicuous dark red veining, blooming freely over a long season. It is best grown in a frost-free conservatory or as a summer patio plant in the UK and northern US, requiring bright light to flower well. The key care requirement is warmth — temperatures below 5°C will damage or kill the plant. Abutilon is not listed on the ASPCA toxic plant database and is widely considered non-toxic to cats and dogs.
Growth habit: Upright to spreading evergreen or semi-evergreen shrub; vigorous when warm and well-fed.
What fertiliser redvein abutilon actually wants — and why
Redvein Abutilon 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 redvein abutilon: 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 redvein abutilon, 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 redvein abutilon:
Feed every 2 weeks from April to September with a balanced liquid fertiliser (e.g., 20-20-20); switch to a high-potassium feed in late summer to encourage flowering. 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 redvein abutilon 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 redvein abutilon
Half strength is the safe default for redvein abutilon — 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 redvein abutilon first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the redvein abutilon watering schedule.
Signs you are over-feeding redvein abutilon
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for redvein abutilon:
- 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 redvein abutilon
- 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 redvein abutilon care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of redvein abutilon 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 redvein abutilon
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 redvein abutilon — frequently asked questions
What fertiliser does redvein abutilon 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. Redvein Abutilon 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 redvein abutilon?
Feed every 2 weeks from April to September with a balanced liquid fertiliser (e.g., 20-20-20); switch to a high-potassium feed in late summer to encourage flowering. Feed every 2 weeks from April to September with a balanced liquid fertiliser (e.g., 20-20-20); switch to a high-potassium feed in late summer to encourage flowering. 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 redvein abutilon?
Half strength is the safe default for redvein abutilon — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding redvein abutilon 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 redvein abutilon 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 redvein abutilon?
Flush the pot of redvein abutilon 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
- Redvein Abutilon care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water redvein abutilon — 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 cardinal climber
- How to fertilise five-leaf akebia
- How to fertilise hybrid trumpet vine
- All 10153 fertilising guides in the Growli library