Bird of paradise leaves falling off: causes and what to do
9 results in the diagnosis tree begin with leaf drop, 3 of them marked likely when the answers fit. They are ordered here for Bird of paradise (Strelitzia reginae), using what its sources say about cold tolerance, light, soil moisture and watering and one problem recorded for it.
Sources last read 14 September 2026.
Strelitzia reginae, commonly known as the crane flower, bird of paradise, or isigude in Nguni, is a species of flowering plant native to the Cape Provinces and KwaZulu-Natal in South Africa. An evergreen perennial, it is widely cultivated for its dramatic flowers. Wikipedia, CC BY-SA 4.0
Native range: Cape Prov. to KwaZulu-Natal (subtropical). Also sold as bird of paradise flower, Bird of paradise plant, Bird's Tongue Flower, canna-leaved strelitzia and crane flower.
What Bird of paradise’s sources say that bears on this
- Cold tolerance
- H1B — 10–15°CRHS · read 13 September 2026
- Light
- Full sun, Partial shadeRHS · read 13 September 2026
- Soil moisture
- Moist but well-drained or Well-drainedRHS · read 13 September 2026
- Watering
- In spring and summer water generously and feed regularly; keep the plants drier in winter.NC State Extension · read 13 September 2026While growing, water generously and feed monthly with a balanced liquid fertiliser. Give little water in winter, and ventilate once temperatures go above 20°C.RHS · read 13 September 2026
How this shows up on a Bird of paradise
Flower buds shed while still closed
Buds appear on the bird of paradise and then fall while still closed, often within days of the plant being moved, turned or left to dry out.
A bud is the most expensive thing on the plant. Kept below the full sun, partial shade its source names, or moved while in bud, the bird of paradise abandons buds before it abandons leaves.
Telling it apart: A fallen bud under a magnifying glass. Insects or scarring point at pests; a clean bud points at a change or at water.
RHS · read 13 September 2026Possible causes, likeliest first for a Bird of paradise
Most likely too little water
Ranked higher because Bird of paradise's recorded problems point this way.
- Moist but well-drained or Well-drained RHS · read 13 September 2026
Why: Soil dry two inches down, under lower leaves that are yellowing or leaves that are falling, is a bird of paradise shedding what it cannot support.
What to try:
- Water until it runs from the drainage hole, then let the pot drain.Useful: pot with drainage holes
- If the water runs straight through a shrunken rootball, stand the pot in water for twenty minutes so the compost can take it up.
What would settle it: Water it thoroughly and look again the same evening. A thirsty plant firms up fast. One that does not has a root problem rather than a water problem.
Most likely a reaction to the change
Why: Many plants drop healthy leaves when their light, temperature or draughts change suddenly.
What to try:
- Leave it where it is now rather than moving it again, unless the new spot is plainly too dark or too cold.Useful: min-max thermometer
- Keep it away from radiators, air vents and doors that open to the outside.Useful: min-max thermometer
What would settle it: Whether the dropping slows within a few weeks of the bird of paradise staying put. A bird of paradise adjusting settles; one with a separate problem keeps losing leaves.
Most likely too much water
- Moist but well-drained or Well-drained RHS · read 13 September 2026
- Chalk, Loam, Sand; pH Acid or Alkaline or Neutral RHS · read 13 September 2026
Why: Soil that is wet two inches down, under leaves that are yellowing from the bottom or falling, points at roots that cannot breathe.
What to try:
- Hold off watering until the top two inches of soil are dry, and check again with a finger rather than by the calendar.Useful: moisture meter
- Empty any water standing in the saucer or the outer pot within half an hour of watering.Useful: pot with drainage holes
What would settle it: Lift the bird of paradise out of its pot. Healthy roots are firm and pale; roots that have been wet too long are brown, soft and smell sour.
Less likely for a Bird of paradise, still possible
Questions
- What usually causes leaf drop on a Bird of paradise?
- For Bird of paradise: most likely too little water, most likely a reaction to the change and most likely too much water.
- How can I tell which one it is on my Bird of paradise?
- Which leaves are falling, and what do they look like? Green leaves, several at once; Yellow leaves, the oldest first; Dry, brown leaves; A tree or shrub that loses its leaves each autumn, and it is autumn.
- What do Bird of paradise's sources say about its cold tolerance?
- RHS: H1B — 10–15°C.
- What does this look like on a Bird of paradise?
- Buds appear on the bird of paradise and then fall while still closed, often within days of the plant being moved, turned or left to dry out. Telling it apart: A fallen bud under a magnifying glass. Insects or scarring point at pests; a clean bud points at a change or at water.
- Is Bird of paradise safe to handle while I check it?
- Its sources list it as toxic to cats and dogs. Wash your hands after handling the roots or sap, and keep trimmings away from pets.
Other plants that show leaf drop
Something else wrong with the Bird of paradise?
What this does not cover
This page orders a decision tree's results using a plant's sourced care. It has not seen your plant, its pot or its window, and two problems at once are common: that is the usual reason a confident answer turns out wrong. The questions in the diagnosis tool narrow it further than a list can.