Fertilising guide
How to fertilise Bird of Paradise (Strelitzia reginae)— schedule & NPK
Also called Crane Flower, Orange Bird of Paradise, Bird of Paradise Flower.
More about bird of paradise
About Bird of Paradise
Strelitzia reginae · also called Crane Flower, Orange Bird of Paradise · tropical
Strelitzia reginae is a bold South African perennial grown for its iconic orange-and-blue flowers resembling a tropical bird in flight. It requires bright direct or near-direct light and well-drained soil. An outstanding container plant for sunny patios. Mildly toxic to dogs and cats if ingested.
Growth habit: Clump-forming evergreen perennial with paddle-shaped leaves on long petioles
Watch for — Failure to flower: Inadequate light, being pot-bound (though slight pot-binding aids flowering), or inconsistent feeding are the most common causes. Ensure at least 4 hours of direct sun and regular feeding.
What fertiliser bird of paradise actually wants — and why
Bird of Paradise 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 bird of paradise: 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 bird of paradise, 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 bird of paradise:
Feed with a balanced liquid fertiliser every 2-3 weeks during spring and summer. A feed with a slightly higher potassium ratio encourages flower production. Do not fertilise in winter when growth slows. Treat that as every 2-3 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 bird of paradise 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 bird of paradise
Half strength is the safe default for bird of paradise — 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 bird of paradise first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the bird of paradise watering schedule.
Signs you are over-feeding bird of paradise
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for bird of paradise:
- 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 bird of paradise
- 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 bird of paradise care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of bird of paradise 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 bird of paradise
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 bird of paradise — frequently asked questions
What fertiliser does bird of paradise 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. Bird of Paradise 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 bird of paradise?
Feed with a balanced liquid fertiliser every 2-3 weeks during spring and summer. A feed with a slightly higher potassium ratio encourages flower production. Do not fertilise in winter when growth slows. Feed with a balanced liquid fertiliser every 2-3 weeks during spring and summer. A feed with a slightly higher potassium ratio encourages flower production. Do not fertilise in winter when growth slows. Treat that as every 2-3 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 bird of paradise?
Half strength is the safe default for bird of paradise — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding bird of paradise 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 bird of paradise 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 bird of paradise?
Flush the pot of bird of paradise 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
- Bird of Paradise care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water bird of paradise — 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 white knight philodendron
- How to fertilise white princess philodendron
- How to fertilise white wizard philodendron
- All 11687 fertilising guides in the Growli library