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lesser creeping rush

Juncus repens · Juncaceae

lesser creeping rush (Juncus repens)
Photo: (c) Jay Horn, some rights reserved (CC BY) · CC BY · via iNaturalist

lesser creeping rush (Juncus repens) is a perennial grass or grass-like plant in the Juncaceae family. It is native to North America. USDA records it as hardy in zone 8 and warmer, down to about 12°F.

At a glance

Typegraminoid USDA
Lifecycleperennial USDA
Native statusnative USDA
Mature height6.8 ft USDA
Lightfull-sun USDA
Water needhigh USDA
Growth raterapid USDA
Soil pH5.5–7 USDA
BloomMay–June USDA
Flower colorGreen USDA
Hardiness zones8 and warmer USDA
Guild layerunderstory Derived
Nursery availabilityNo Known Source 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 needs full sun. USDA rates it as having needs consistently moist ground. Its drought tolerance is rated none — it needs reliable moisture. It tolerates saturated, poorly drained ground well (USDA rates its anaerobic tolerance high). It is recorded on soils from pH 5.5 to 7 — a broad range that spans acidic through mildly alkaline ground. Its cold limit is zone 8.

Size and growth

At maturity it reaches about 6.8 ft, making it a plant that will finish above head height. It grows quickly.

Bloom period

USDA records a bloom period of May through June. Flowers are green.

A flowering date, not a pollinator rating.

Foliage, flower and season

Summer foliage is green, fine in texture. Its flowers are not conspicuous — a plant for form and foliage. Its active growth period is spring, summer, fall. USDA rates its lifespan as short, so plan on replacing or resowing it rather than treating it as permanent structure.

What the site needs to provide

USDA records it across sites receiving 35 to 60 inches of annual precipitation. It needs at least 180 frost-free days to finish its season. It roots to at least 3 inches. Fertility requirement: low — no feeding needed on ordinary garden soil.

Propagating it

Propagate it from seed, bare root and sprigs. USDA records no cold-stratification requirement, so seed should germinate without a chilling period. Its seed spreads at a slow rate. 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

Understory. In a layered planting this is the layer beneath the canopy, tall enough to hold structure but shaded from above. The layer is derived by a fixed rule from growth habit and mature height.

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Tags

deciduouswet-tolerantclay-tolerantsandy-soildeer-resistantspreadingnativefull-sunfast-growing

Related plants

Others in Juncus

Similar role and hardiness

Where this data comes from

Every value on this page comes from the USDA PLANTS database record for symbol JURE2, 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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