Royal White Redbud (Cercis canadensis f. alba 'Royal White') - white flowers, illustrated plant cardIllustration

Royal White Redbud

Cercis canadensis f. alba 'Royal White'

Royal White Redbud blooms from April through April.

Bloom calendar
Bloom time
Apr
not yet checked
Hardiness
Zones 4–9
not yet checked
Sun
Part sun
not yet checked
Water
Moderate water
not yet checked
Mature size
20 ft × 23 ft
not yet checked
Type
Tree
house classification

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

Growing Royal White Redbud

Plant it in part sun. It prefers moderate water. It is hardy in USDA zones 4–9. Expect it to reach about 20 ft tall and 23 ft wide at maturity, in roughly 10 years (not yet checked).

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

Verification
What this means

Written with AI assistance and not yet checked plant by plant against recorded sources, so treat every fact above as a starting point. Its scientific name was checked against botanical registries, an audit keeps its values consistent with the rest of the library, and a July 2026 review re-read the main facts of every plant then in the library against horticultural authorities without recording a source for each, which is why none of that counts as checked here. The source-by-source check is working through the whole library in the open, and a checked plant says so in this row.

When to plant Royal White Redbud

Plant Royal White Redbud 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 6, the middle of its hardy zones 4 to 9, spring means March to May and fall means August or September. Once settled, it blooms in April.

Month-by-month timing for your zone is on the planting calendar; if you garden near zone 6, the middle of this plant's hardy range, start with zone 6 in March. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.

How big does Royal White Redbud get?

Illustration of Royal White Redbud drawn to scale beside an adult20 fttall5 ft 7 inan adult23 ftwide
About 20 ft tall and 23 ft wide at maturity: about 4 times as tall as an adult.

See Royal White Redbud 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 Royal White Redbud

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

Give Royal White Redbud about 23 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.

Clear ground around it
23 ft in every direction

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

The Redbud group

One of 10 in the Redbud group. Same genus, similar care.

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