Houseplantflowering houseplantSome care needed

Bird of paradise

Strelitzia reginae

A large architectural plant with paddle leaves that will flower indoors given enough light, a snug pot and patience — usually four to six years from a young plant. It wants the brightest position in the house, which most indoor plant advice would tell you to avoid.

Position: Bright with direct sun
Water: moderate demand
Drainage: Free-draining
Grows to: 120–200 cm × 90–150 cm
Frost: Frost tender
Flowers: April to September
Difficulty: Some care needed

August

In flower

Bird of paradise’s year

Resolved for United Kingdom (general). Every window is stored against a climate event rather than a date, so a late frost pocket runs later than the band shows. What else August calls for.

Activity	J	F	M	A	M	J	J	A	S	O	N	D
In flower				April.	May.	June.	July.	August.	September.
Take cuttings				April.	May.

Timing that travels

The band above resolves this plant's windows into months for one region. These are the windows themselves, stored against a climate event rather than a date — which is the form that survives being carried to a colder garden, a frost pocket, or next year.

Conditions it needs

Light: Full sun, Partial shade
Frost: Frost tender
Grows best at: 18–27 °C
Soil: Peat-free compost, Loam
Soil pH: 6–7.5
Drainage: Free-draining
Water needs: moderate
Drought: moderate tolerance
Waterlogging: poor tolerance
Heat: good tolerance
Wind and exposure: poor tolerance

Where these figures come from

LightSourced guidancehigh confidence: Royal Horticultural Society: Strelitzia — position
Checked 2026-08-13
FrostSourced guidancehigh confidence: Royal Horticultural Society: Strelitzia — hardiness
Checked 2026-08-13
Grows best atSourced guidancemoderate confidence: Royal Horticultural Society: Strelitzia — temperature
Checked 2026-08-13
SoilSourced guidancemoderate confidence: Royal Horticultural Society: Strelitzia — soil
Checked 2026-08-13
Soil pHSourced guidancemoderate confidence: Plant Finder — Missouri Botanical Garden: Strelitzia reginae — culture
Checked 2026-08-13
DrainageSourced guidancemoderate confidence: Royal Horticultural Society: Strelitzia — soil
Checked 2026-08-13
Water needsHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13
DroughtHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13
WaterloggingHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13
HeatHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13
Wind and exposureHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13

On your soil

Computed by comparing this plant's recorded requirements against each soil's recorded characteristics. A recorded horticultural fact overrides the comparison where GrowingHQ holds one.

Soil	Verdict	Why
Heavy clay	Works, with one condition	Bird of paradise will crop on heavy clay, but one thing has to be dealt with first. It needs ground that drains, and this soil holds water. For a crop lifted before winter the risk is not rot but the season: waterlogged ground is cold and unworkable in spring, so sowing is late and germination patchy.Improve the drainage before planting — a raised bed, or bulky organic matter worked in over several seasons. Do not add sand to clay in small quantities; it makes the problem worse.
Sandy	Grows well here	Bird of paradise grows perfectly well on sandy without special measures, though it is not the soil it would choose.
Chalky and alkaline	Grows well here	Bird of paradise grows perfectly well on chalky and alkaline without special measures, though it is not the soil it would choose.
Loam	Prefers this soil	Loam suits Bird of paradise as it stands: The pH suits it: it wants 6 to 7.5, and this soil is in that range. The free drainage is exactly what it wants. Loam is among the soils it is recorded as suiting. The soil holds moisture, which saves a great deal of watering.
Silty	Prefers this soil	Silty suits Bird of paradise as it stands: The pH suits it: it wants 6 to 7.5, and this soil is in that range. The free drainage is exactly what it wants. The soil holds moisture, which saves a great deal of watering.
Peaty and acid	Works, with one condition	Bird of paradise will crop on peaty and acid, but one thing has to be dealt with first. It needs ground that drains, and this soil holds water. For a crop lifted before winter the risk is not rot but the season: waterlogged ground is cold and unworkable in spring, so sowing is late and germination patchy.Improve the drainage before planting — a raised bed, or bulky organic matter worked in over several seasons. Do not add sand to clay in small quantities; it makes the problem worse.
Shallow over rock	Prefers this soil	Shallow over rock suits Bird of paradise as it stands: The free drainage is exactly what it wants. Loam is among the soils it is recorded as suiting.
Made ground and urban soil	Works, with one condition	Bird of paradise will crop on made ground and urban soil, but one thing has to be dealt with first. It needs ground that drains, and this soil holds water. For a crop lifted before winter the risk is not rot but the season: waterlogged ground is cold and unworkable in spring, so sowing is late and germination patchy.Improve the drainage before planting — a raised bed, or bulky organic matter worked in over several seasons. Do not add sand to clay in small quantities; it makes the problem worse.

Not sure which you have? Four hand tests will settle it.

Space and spacing

Mature height: 120–200 cm
Mature spread: 90–150 cm
Rooting depth: 40 cm

Where these figures come from

Mature heightHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13
Mature spreadHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13
Rooting depthHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13

In a container

Minimum volume: 15 litres or more
Minimum depth: 30 cm

Where the container figures come from

Minimum volumeHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13
Minimum depthHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13

Keep it snug. Strelitzia flowers when the roots are congested, and repotting into something roomier is the usual reason a mature plant stops flowering.

Where and how you can grow it

Each way of growing is assessed separately, and “not assessed” is a real answer rather than a gap we have filled in with a guess.

Method	Suitability	What it needs
Indoor pot	Well suited source Sourced guidancemoderate confidence Royal Horticultural Society: Growing method suitability Checked 2026-08-13
Windowsill	Well suited source Sourced guidancemoderate confidence Royal Horticultural Society: Growing method suitability Checked 2026-08-13
Container	Well suited source Sourced guidancemoderate confidence Royal Horticultural Society: Growing method suitability Checked 2026-08-13	Indoors, or outdoors in summer only
Greenhouse	Well suited source Sourced guidancemoderate confidence Royal Horticultural Society: Growing method suitability Checked 2026-08-13
Hydroponics	Not assessed source Sourced guidancemoderate confidence Royal Horticultural Society: Growing method suitability Checked 2026-08-13
Open ground	Not suitable source Sourced guidancemoderate confidence Royal Horticultural Society: Growing method suitability Checked 2026-08-13	Tender: will not survive a British winter outdoors.

Growing it

TransplantingResist repotting. Strelitzia flowers best when pot-bound, and a plant moved into a larger container typically puts several years of growth into roots and leaves before flowering again.
ProtectionStand it outside in a sheltered sunny spot from June to September. The extra light materially improves the chance of flowering, and the leaves harden enough to resist the splitting they get indoors.
WateringWater thoroughly when the top three to five centimetres are dry through the summer, and considerably less from October — a strelitzia in a cool room in winter wants only enough to stop the compost drying out entirely. It is a big plant with a big root system and it will take a lot of water in July, which makes the autumn reduction a large and deliberate change rather than a small one. Leaves splitting along the ribs is normal and happens to every plant of this kind; browning leaf edges usually means dry air or salt build-up.
FeedingFeed generously for a houseplant: a balanced liquid feed fortnightly from April to August, switching to a high-potash feed in the second half of that period on a plant old enough to flower. Stop by the end of September. Strelitzias need to be several years old and genuinely pot-bound before they flower, and they need a very bright position and a cool winter rest — a young plant, a dark corner or a warm winter will each on its own prevent flowering, and none of them is a feeding problem.

Where this guidance comes from

TransplantingSourced guidancehigh confidence: Royal Horticultural Society: Strelitzia — flowering
Checked 2026-08-13
ProtectionSourced guidancehigh confidence: Royal Horticultural Society: Strelitzia — summer care
Checked 2026-08-13
WateringSourced guidancemoderate confidence: Royal Horticultural Society: Strelitzia reginae — cultivation
Checked 2026-08-13
FeedingSourced guidancemoderate confidence: Royal Horticultural Society: Strelitzia reginae — cultivation
Checked 2026-08-13

What goes wrong

Start from what you can see

Healthy growth but no flowers

Safety and edibility

Cats and dogsUsually a short upset stomach

Listed as harmful to cats or dogs

Bird of paradise is listed as harmful if eaten. The flowers and the seeds carry the toxins; the leaves are comparatively inert. Eating them causes vomiting and drowsiness in cats and dogs. Since a houseplant-sized bird of paradise rarely flowers indoors, the exposure route in practice is a seed from a plant that did.

source

Sourced guidancehigh confidence

ASPCA Animal Poison Control Center — toxic and non-toxic plant list — American Society for the Prevention of Cruelty to Animals: Strelitzia reginae — toxic plants list

Checked 2026-08-13

Affected parts: flower, seed.

Pets and livestockpets
The seeds and flowers contain toxins that cause vomiting and drowsiness in cats and dogs. The leaves are much less of a concern than the flowering parts.
source
Sourced guidancemoderate confidence
- Royal Horticultural Society: Strelitzia — toxicity
Checked 2026-08-13
Keep flowers and seed pods away from pets. Contact a vet if a pet has eaten them.

Sources for this page

GrowingHQ editorial synthesis · Plant Finder · Royal Horticultural Society

Each figure on this page carries its own citation, under the “where these figures come from” note in its section. Record last reviewed 2026-08-14.

If something is wrong with it

Healthy growth but no flowers — 2 causes GrowingHQ holds for bird of paradise

Something else? Work through it with the diagnostic tool.