Illustration
Royal Purple Lilyturf
Liriope muscari 'Royal Purple'
Also called royal purple lily turf
Royal Purple Lilyturf blooms from August through September.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Royal Purple Lilyturf
Plant it in part shade. It prefers moderate water. It is hardy in USDA zones 5–8. Expect it to reach about 12 in tall and 12 in wide at maturity, in roughly 2 years (a house reading).
No toxicity note is on file for Royal Purple Lilyturf. That is not a clearance: check its safety for people and pets before planting.
What was checked
Mature height and spread, hardiness zones, sun, water, bloom months and color and the trait tags were checked against named botanical sources for this plant, with what the sources could not settle written down; years to mature size rests on a recorded house rule where no publisher states one, and is marked so; its common name and alternate names have not been checked yet. 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 Royal Purple Lilyturf
Plant Royal Purple Lilyturf 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 5 to 8, spring means March to May and fall means August or September. Once settled, it blooms from August to 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 Royal Purple Lilyturf get?
12 intall5 ft 7 inan adult12 inwideSee Royal Purple Lilyturf 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 Purple Lilyturf
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Royal Purple Lilyturf about 12 in apart, center to center, so each plant has room to reach its full width.
Add Royal Purple Lilyturf 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
Royal Purple Lilyturf's height, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil, diseases, pests and toxicity were checked against 8 published sources on September 23, 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 GardenPlant Finderheight, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil, diseases and pests
- Plant Addictsheight, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil, diseases and pests
- RHSRoyal Horticultural Societyheight, spread, sun, water, bloom months and color, trait tags, soil, diseases and pests
- homenursery.comHome Nursery (Albers, Illinois; a Clarity Connect plant page)height, spread, hardiness zones, water, bloom months and color, trait tags and pests
- pridescorner.comPrides Corner Farms (Lebanon, Connecticut; a Clarity Connect plant page)height, spread, hardiness zones, sun, water, bloom months and color and soil
- Clemson Home and Garden Information CenterHGIC 1108, Liriopeheight, sun, bloom months and color, soil, diseases and pests
- NC State ExtensionLiriope muscari, species pagesun, water, bloom months and color, soil, diseases and toxicity
- ASPCAToxic and Non-Toxic Plants: Turf Lilytoxicity
How the checking works, and what each standard covers, is on the verified plants page.
2 more varieties in the Lilyturf group
Same genus, similar care - pick the one you are growing.
Compare every variety in the Lilyturf group
Every figure is the variety's own page fact. Tap a name to open it.
| Variety | Color | Blooms | Hardiness | Sun | Size (H × W) |
|---|---|---|---|---|---|
| Creeping | Purple | Aug–Sep | Zones 4–10 | Part shade | 12 in × 20 in |
| Royal Purplethis page | Purple | Aug–Sep | Zones 5–8 | Part shade | 12 in × 12 in |
| Variegated | Foliage | Aug–Oct | Zones 5–10 | Part shade | 16 in × 16 in |
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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.