White Strawflower (Xerochrysum bracteatum) - white flowers, illustrated plant cardIllustration

White Strawflower

Xerochrysum bracteatum

White Strawflower blooms from June through September.

Bloom calendar
Bloom time
Jun–Sep
checked
Hardiness
Zones 8–11
checked
Sun
Full sun
checked
Water
Low water
checked
Mature size
24 in × 12 in
checked
Type
Annual
house classification

Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.

Growing White Strawflower

Plant it in full sun. It prefers low water. It is hardy in USDA zones 8–11. Expect it to reach about 24 in tall and 12 in wide at maturity, in roughly 1 year (a house reading).

Pets

Lists differ and none is complete. If a pet eats a plant and seems unwell, call a veterinarian or a pet poison helpline.

No toxicity note is on file for White Strawflower. That is not a clearance: check its safety for people and pets before planting.

Verification
What was checked

Nine facts were checked against named botanical sources, each recorded beside the sources that carried it: mature height and spread, hardiness zones, sun, water, bloom months and color, the trait tags, and years to mature size, which rests on a recorded house rule where no publisher states one and is marked so. Soil, diseases, pests, toxicity and the plant's own names have not yet been read for this plant, and its trait tags are the ones a feature uses rather than every word a page prints. Each fact above carries its own mark. 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.

See the 6 sources it was checked against

When to plant White Strawflower

Wait until all danger of frost has passed, then plant out White Strawflower into warm soil; in most zones that means late spring. Planted then, it flowers from June to September.

Month-by-month timing for your zone is on the planting calendar; if you garden near zone 9, the middle of this plant's hardy range, start with zone 9 in February. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.

How big does White Strawflower get?

Illustration of White Strawflower drawn to scale beside an adult24 intall5 ft 7 inan adult12 inwide
About 24 in tall and 12 in wide at maturity: knee-high beside an adult.

See White Strawflower in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.

How far apart to plant White Strawflower

Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.

Space White Strawflower about 12 in apart, center to center, so each plant has room to reach its full width.

Plant them
12 in apart
Per 10 sq ft
about 10
4 by 8 ft bed
about 32

Add White Strawflower to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.

Where these facts come from

White Strawflower's height, spread, hardiness zones, sun, water, bloom months and color and trait tags were checked against 6 published sources on October 27, 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.

  • Missouri Botanical Gardenheight, spread, hardiness zones, sun, water, bloom months and color and trait tags
  • libertylandscapesupply.comLiberty Landscape Supplyheight, spread, hardiness zones, sun, water and bloom months and color
  • byf.unl.eduUniversity of Nebraska-Lincolnheight, spread, hardiness zones, sun, water and trait tags
  • NC State Extensionheight, spread, hardiness zones, sun, water and trait tags
  • agflowerseeds.caAG Flower Seedsheight, bloom months and color and trait tags
  • RHSRoyal Horticultural Societysun and water

How the checking works, and what each standard covers, is on the verified plants page.

The Strawflower group

One of 7 in the Strawflower group. Same genus, similar care.

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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.

Design a garden with this →