Illustration
White Wisteria (Alba)
Wisteria floribunda 'Alba'
White Wisteria (Alba) blooms from April through May.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing White Wisteria (Alba)
Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 5–9. Expect it to reach about 26 ft tall and 13 ft wide at maturity, in roughly 5 years (a house reading).
Is White Wisteria (Alba) toxic to dogs or cats?
- Listed as toxic to dogs and cats by NC State Extension, Pet Poison Helpline and Royal Horticultural Society.
- Listed as poisonous to people by NC State Extension and Royal Horticultural Society.
Lists differ and none is complete. If a pet eats a plant and seems unwell, call a veterinarian or a pet poison helpline.
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.
When to plant White Wisteria (Alba)
Plant White Wisteria (Alba) in early spring as soon as the soil is workable, or in early fall at least six weeks before your first frost, so roots establish in cool weather. In zone 7, the middle of its hardy zones 5 to 9, spring means March to May and fall means September or October. Once settled, it blooms from April to May.
Month-by-month timing for your zone is on the planting calendar; if you garden near zone 7, the middle of this plant's hardy range, start with zone 7 in March. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.
How big does White Wisteria (Alba) get?
26 fttall5 ft 7 inan adult13 ftwideSee White Wisteria (Alba) 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 Wisteria (Alba)
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Give White Wisteria (Alba) about 13 ft of clear ground in every direction, measured from its center. It is one plant with room around it, not a row, and a raised bed is too small for it.
Add White Wisteria (Alba) 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 Wisteria (Alba)'s height, spread, hardiness zones, sun, water, bloom color and trait tags were checked against 11 published sources on October 24, 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.
- havlis.czHavlisheight, hardiness zones, sun, water, bloom months and color and trait tags
- wilsonbrosgardens.comWilson Bros Gardensspread, hardiness zones, sun, bloom months and color and trait tags
- glovercatalog.comGlover Nurseryheight, hardiness zones, water and bloom months and color
- burncoose.co.ukBurncoose Nurseriesheight, spread and trait tags
- larchcottage.co.ukLarch Cottage Nurseriesheight and bloom months and color
- Missouri Botanical Gardensun, water and trait tags
- NC State Extensionsun and trait tags
- RHSRoyal Horticultural Societywater and trait tags
- woodyplants.cals.cornell.eduCornell Universitysun and water
- Chicago Botanic Gardensun
- navigate.botanicgardens.orgDenver Botanic Gardenshardiness zones
How the checking works, and what each standard covers, is on the verified plants page.
Good to know about White Wisteria (Alba)
Curated from university extensions, botanic gardens and other primary sources, with the source named on every note.
Safety
Toxic to people, dogs, cats and horses; all parts, and the dangling seed pods worst. Eating them brings vomiting, diarrhea and stomach pain. Keep pods from children. per ASPCA and National Capital Poison Center
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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.