Illustration
Palace Purple
Heuchera 'Palace Purple'
Palace Purple is grown for its foliage rather than flowers, giving the garden structure and color all season long.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Palace Purple
Plant it in part shade. It prefers moderate water. It is hardy in USDA zones 4–9. Expect it to reach about 16 in tall and 16 in wide at maturity, in roughly 2 years (not yet checked).
No toxicity note is on file for Palace Purple. 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 Palace Purple
Plant Palace Purple 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.
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 Palace Purple get?
16 intall5 ft 7 inan adult16 inwideSee Palace Purple 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 Palace Purple
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Palace Purple about 16 in apart, center to center, so each plant has room to reach its full width.
Add Palace Purple 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
Palace Purple'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.
- gertens.comGertensheight, spread, hardiness zones, sun, years to mature size and trait tags
- NC State ExtensionPlant Toolbox, Heuchera genus entryheight, spread, hardiness zones, sun, years to mature size and trait tags
- Perennials.com (Heritage Perennials)Heritage Perennials (Valleybrook International Ventures)height, spread, hardiness zones, sun, years to mature size and trait tags
- Walters Gardensheight, spread, hardiness zones, sun, years to mature size and trait tags
- Missouri Botanical GardenPlant Finderheight, spread, hardiness zones, sun and trait tags
- NC State ExtensionPlant Toolboxheight, spread, hardiness zones, sun and trait tags
- nvknurseries.comNVK Nurseriesheight, spread, sun, years to mature size and trait tags
- colesvillenursery.comColesville Nurseryheight, hardiness zones, sun and trait tags
- North Creek Nurseriesheight, spread, hardiness zones and trait tags
- perennialplantoftheyear.comPerennial Plant Association, Perennial Plant of the Yearheight, hardiness zones and sun
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.