Illustration
Australia
Canna 'Australia'
Australia blooms from July through September.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Australia
Plant it in full sun. It prefers high water. It is hardy in USDA zones 7–10. Expect it to reach about 5 ft tall and 2 ft wide at maturity, in roughly 1 year (not yet checked).
No toxicity note is on file for Australia. That is not a clearance: check its safety for people and pets before planting.
What was checked
Mature height and spread, hardiness zones, sun and the trait tags were checked against named botanical sources for this plant. The bloom months and water need on this page were not, and each fact above says which. The planting, spacing and size sections are derived from these checked facts by a fixed rule, not checked separately, and the plant type is the library's own classification.
When to plant Australia
Australia is a summer bulb planted in spring: get it in after the last frost, once the soil has warmed, March or April in zone 8, the middle of its hardy zones 7 to 10. It is hardy in zones 7 to 10, where it can stay in the ground over winter; colder than zone 7, lift and store it before the ground freezes. Expect flowers from July to September.
Month-by-month timing for your zone is on the planting calendar; if you garden near zone 8, the middle of this plant's hardy range, start with zone 8 in March. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.
How big does Australia get?
5 fttall5 ft 7 inan adult2 ftwideSee Australia in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.
Where these facts come from
Australia's height, spread, hardiness zones, sun and trait tags were checked against 10 published sources on July 30, 2026. Each one is linked below with every fact it carried, which can include a fact this page still marks as not yet checked, because a source carrying a value is not the same as the value being held to the standard. Facts not in that list, and the planting, spacing and size sections, are not covered by these sources.
- buchanansplants.comBuchanan's Native Plantsheight, spread, hardiness zones, sun, years to mature size and trait tags
- NC State ExtensionCanna x generalis, species recordheight, spread, hardiness zones, sun, years to mature size and trait tags
- kiefernursery.comKiefer Landscaping and Nurseryheight, spread, hardiness zones, sun and years to mature size
- Missouri Botanical GardenPlant Finderheight, spread, hardiness zones, sun and trait tags
- NC State ExtensionCanna, genus recordheight, spread, hardiness zones, sun and trait tags
- Brent and Becky's Bulbsheight, hardiness zones, sun and trait tags
- greenthumbsgalore.comGreen Thumbs Galoreheight, hardiness zones, sun and trait tags
- jamesgreenhouses.comJames Greenhousesheight, hardiness zones, sun and trait tags
- Longfield Gardensheight, hardiness zones, sun and trait tags
- University of Florida IFASExtension, Gardening Solutionssun
How the checking works, and what each standard covers, is on the verified plants page.
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Design a garden with this
Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.