A giant evergreen relative of the banana from coastal eastern South Africa, grown for its enormous, gray-green, paddle-shaped leaves and its dramatic white-and-blue, crane-like flowers. Honesty first: in frost-free climates (USDA zones 10a-11b) it forms a fan of multiple woody trunks and reaches 20-30 feet tall, with large bird-of-paradise blooms held in dark, boat-shaped bracts up in the canopy. It is frost-tender, so everywhere colder it is grown as a big container or indoor foliage plant — kept far smaller by the pot and rarely, if ever, flowering. The whole plant is a mild irritant if eaten, with the seeds more so, so it is best kept away from curious pets and children. It is grown above all for bold, tropical, architectural foliage rather than for its flowers in most gardens.
Climate fit: narrow (23/100)
Focal point
Structure
Container
Light
Part shade
Water
Moderate water
Mature size
240-360" tall · 96" apart
Hardy in zones
10a-11b
mild to nearly frost-free winters
Native in Illinois
No
Grown strictly as an ornamental foliage plant, never for food.
°C
°F
Cold hardiness
Future
2050
2100
These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
USDA
Published baseline for this location from 1991-2020.
Source: USDA Plant Hardiness Zone Map 2023 (1991-2020 climatology) via ArcGIS FeatureServer
Won't grow here
2050
Zone 7a
Plotwright
Projected zone for this same location in 2050 (2041-2070) using SSP3-7.0 (regional rivalry).
Won't grow here
In plain terms: This location is in Zone 6b today. Its hardiness profile is cold winters, and coldest nights are typically around -3°F. By 2050, the projected hardiness zone is Zone 7a based on SSP3-7.0 (regional rivalry). That is a +0.5-zone shift from Zone 6b to Zone 7a by 2050.
✕
Out of range today and still out of range in 2050.
Heat tolerance
Future
2050
2100
Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
Loading AHS heat-zone data for this location...
Where this plant fits
Suitable across 17 ecoregions — 11 climate-resilient through 2070 · 6 newly possible by 2070. Best matches first.
Treat frost as the hard limit: in USDA zones below 10, grow it in a large, heavy container, summer it outdoors, and bring it indoors before the first frost — and don't expect flowers on an indoor-wintered plant.
•
Give it bright, indirect light or part shade and steady warmth above about 60°F; it grows lush in warmth and good light and sulks in cold, dark, drafty corners.
•
Water when the top inch or two of soil is dry, then let it drain fully — it tolerates a little dryness, especially once established, far better than constantly soggy roots, which rot the fleshy root system.
Lifecycle
Planting
Where hardy (USDA zones 10a-11b), plant in spring in part shade in rich, well-drained soil, in a spot sheltered from strong wind that would shred the big leaves; give it room, since the clump widens into a fan of trunks. Space about 96 inches (8 feet) apart. Everywhere colder, grow it in a large, heavy, free-draining container of quality potting mix in bright, indirect light, summered outdoors and brought indoors before frost.
Transplanting
Move or pot up in warm weather while the plant is in active growth, as it resents cold, soggy roots and a fleshy root system that is slow to re-establish after disturbance. Rooted offsets or rhizome divisions taken from an established clump can be replanted or potted up; expect a check in growth while they settle.
Early growth
Young plants grow steadily with warmth (above about 60°F), bright indirect light or part shade, and evenly moist soil that is allowed to dry slightly between waterings; avoid frost, cold drafts, and waterlogged soil. It is slower and far more drought-tolerant once mature than its lush look suggests, but young plants establish best with steady moisture and feeding.
Maturity
In frost-free climates a mature plant becomes a fan of woody trunks 20-30 feet tall and 6-10 feet wide that flowers high in the canopy; in a container or indoors it stays a fraction of that size and rarely, if ever, blooms. It is long-lived, building more trunks and offsets over time, and tolerates established drought better than most tropicals once its roots are deep.
Propagation
Propagate by dividing the clump or removing rooted offsets (suckers) in warm weather, which is the usual and faster route; it can also be grown from seed, but seedlings are slow and take many years to reach flowering size.
Pollination
Pollination not applicable
Grown almost entirely for its bold foliage and, where it flowers, for ornament rather than a fruit crop, so no garden pollination arrangement applies. In its native South African range the flowers are bird-pollinated — sunbirds and weavers perch on the blue, arrow-shaped tongue and trip it to release pollen — but those birds are not part of North American gardens, where it seldom sets seed and is increased by division instead.
For people
Toxic — do not consume
Grown strictly as an ornamental foliage plant, never for food. Strelitzia nicolai is a mild irritant if eaten: chewing or swallowing leaves or flowers can cause mouth irritation, drooling, nausea, and stomach upset in people and pets, and the seeds (with their bright orange arils) are more strongly irritant and should be considered the most hazardous part. It is not a deadly poison, and reactions are usually mild and self-limiting, but it is best to keep the plant — and especially any seeds — away from children and pets that chew, and to eat no part of it.
Climate notes
•
NC State Extension lists Strelitzia nicolai for USDA hardiness zones 10a-11b; it is native to coastal eastern South Africa, not to North America.
•
A subtropical that takes heat and humidity well but is frost-tender: foliage is damaged or killed by frost and the plant is hardy in the open ground only in zones 10-11, so colder gardeners grow it as a container or indoor foliage plant overwintered indoors, where it rarely flowers.
•
Once established it is moderately drought-tolerant and tougher than its lush look suggests, but it wants a wind-sheltered spot, since strong wind shreds the large leaves and spoils the bold effect.
•
Generally robust and not seriously bothered by pests outdoors; indoors it can pick up scale, mealybugs, and spider mites in dry winter air, and its eventual size and weight are the real siting consideration rather than disease.
In the designer
Growth over time
204-306" tall · 61-102" spread
Approaching its mature 20-30 foot fan of trunks in frost-free climates, where established clumps produce the white-and-blue flowers high in the canopy; indoors and in pots it remains a fraction of that size.
Design roles: Focal point · Structure · Container
Seasonal interest
Spring
Summer
Fall
Winter
Filled = the plant has seasonal interest · ▾ now = your current season
Sources & citations
Cite this page
For lesson plans, articles, or research that uses this page. To cite a single upstream fact instead, use its specific source listed below.
Plotwright. (2026, May 17). Giant white bird of paradise (Strelitzia nicolai). Retrieved 2026, June 14, from https://plotwright.garden/plants/strelitzia-nicolai
Sources for every fact
Every fact on this page traces to a source. 18 fields cited - 18 source-backed.
