Illustration
Big Blue Lilyturf
Liriope muscari 'Big Blue'
Also called big blue liriope and big blue lily turf
Big Blue Lilyturf blooms from August through September.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Big Blue Lilyturf
Plant it in part shade. It prefers moderate water. It is hardy in USDA zones 5–10. Expect it to reach about 16 in tall and 20 in wide at maturity, in roughly 2 years (a house reading).
No toxicity note is on file for Big Blue 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 Big Blue Lilyturf
Plant Big Blue 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 7, the middle of its hardy zones 5 to 10, spring means March to May and fall means September or October. 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 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 Big Blue Lilyturf get?
16 intall5 ft 7 inan adult20 inwideSee Big Blue 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 Big Blue Lilyturf
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Big Blue Lilyturf about 20 in apart, center to center, so each plant has room to reach its full width.
Add Big Blue 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
Big Blue 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 26, 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
- RHSRoyal Horticultural Societyheight, spread, sun, water, bloom months and color, trait tags, soil, diseases and pests
- NC State ExtensionLiriope muscari, species pagehardiness zones, sun, water, bloom months and color, soil, diseases, pests and toxicity
- Plant Addictsheight, spread, hardiness zones, sun, water, bloom months and color, trait tags and soil
- plants.thegrowingplace.comThe Growing Place (Aurora and Naperville, Illinois; a NetPS Plant Find...height, spread, hardiness zones, sun, water, bloom months and color, trait tags and soil
- Pleasant Run NurseryAllentown, New Jersey; a Clarity Connect plant pageheight, spread, hardiness zones, sun, water, bloom months and color, trait tags and pests
- Clemson Home and Garden Information CenterHGIC 1108, Liriopeheight, spread, sun, bloom months and color, soil, diseases and pests
- Chicago Botanic GardenPlant Finderhardiness zones
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.