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big blue lilyturf

Liriope muscari · Liliaceae

big blue lilyturf (Liriope muscari)
Photo: Denis.prévôt · CC BY-SA · via Wikimedia Commons

big blue lilyturf (Liriope muscari) is a perennial herbaceous plant in the Liliaceae family. It is introduced to North America rather than native. USDA records it as hardy in zone 4 and warmer, down to about -23°F.

At a glance

Typeforb-herb USDA
Lifecycleperennial USDA
Native statusintroduced USDA
Mature height0.5 ft USDA
Lightshade USDA
Water needlow USDA
Growth ratemoderate USDA
Soil pH5–8 USDA
BloomAugust–September USDA
Flower colorBlue USDA
Hardiness zones4 and warmer USDA
Guild layerground-cover Derived
Nursery availabilityRoutinely Available USDA

USDA quoted from the USDA PLANTS database · Derived computed by a fixed rule from those columns. No value on this page is estimated.

Growing conditions

It tolerates full shade. USDA rates it as having low water needs once established. Its drought tolerance is rated medium. It will not tolerate waterlogged soil — USDA rates its anaerobic tolerance as none. It is recorded on soils from pH 5 to 8 — a broad range that spans acidic through mildly alkaline ground. Its cold limit is zone 4.

Size and growth

At maturity it reaches about 0.5 ft, making it a low, mat-forming plant. It grows at a moderate rate.

Bloom period

USDA records a bloom period of August through September. Flowers are blue.

A flowering date, not a pollinator rating.

Foliage, flower and season

Summer foliage is green, coarse in texture. Its flowers are not conspicuous — a plant for form and foliage. Its fruit or seed heads are conspicuous, extending interest past flowering. Its active growth period is spring and summer. USDA rates its lifespan as moderate.

What the site needs to provide

USDA records it across sites receiving 26 to 60 inches of annual precipitation. It needs at least 150 frost-free days to finish its season. It roots to at least 12 inches. Fertility requirement: medium.

Propagating it

Propagate it from container stock and sprigs. It spreads vegetatively at a rapid rate.

Resilience and wildlife

Browsing animals rate it barely palatable — the sourced basis for calling it deer-resistant. Its fire tolerance is rated high. Its growth form is recorded as rhizomatous.

Role in a guild

Ground cover. In a layered planting this is the lowest layer — it shades soil, holds moisture, and suppresses weeds. The layer is derived by a fixed rule from growth habit and mature height.

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Tags

deciduousdrought-tolerantclay-tolerantsandy-soildeer-resistantspreadingintroducedshade-tolerantground-cover

Related plants

Similar role and hardiness

Where this data comes from

Every value on this page comes from the USDA PLANTS database record for symbol LIMU6, or is computed from those values by a fixed rule. Nothing here is estimated or model-generated. Where USDA publishes no value, this page omits the claim rather than filling the gap.

Read our full data sources and methodology.

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