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Awl-leaf Lilaea

Triglochin scilloides

Last reviewed: June 2026

Awl-leaf Lilaea (Triglochin scilloides)
Photo: <a href="http://www.pwrc.usgs.gov/WLI/">USDA NRCS Wetland Science Institute</a>., no known copyright restrictions (public domain)

Light

part sun

Water

high

Size

2"–12" H × 1"–6" W

Bloom

May, Jun, Jul

Native to

CA, MT, NV, OR and 1 more states

Triglochin scilloides is a small native wetland plant that forms low clumps of narrow, grass-like leaves. It produces tiny inconspicuous flowers on short spikes during late spring and summer. This species requires consistently moist to wet soil conditions and is best suited for bog gardens or water features.

In an HOA neighborhood

Awl-leaf Lilaea takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Requires specialized wet conditions that are difficult to maintain
  • Very small and inconspicuous appearance may look sparse
  • Uncommon plant that HOAs may not recognize as intentional landscaping

Wildlife value

This plant provides habitat for wetland insects and small creatures. The seeds may be eaten by waterfowl and other birds that frequent wet areas.

Common questions

How much sun does Awl-leaf Lilaea need?
Awl-leaf Lilaea grows best in part sun conditions.
When does Awl-leaf Lilaea bloom?
Awl-leaf Lilaea blooms in May, June, and July.
Where is Awl-leaf Lilaea native?
Awl-leaf Lilaea (Triglochin scilloides) is native to CA, MT, NV, OR and 1 more states, per the USDA PLANTS Database and regional native plant society lists.
Is Awl-leaf Lilaea HOA-friendly?
Awl-leaf Lilaea takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Awl-leaf Lilaea? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Not sure where to start? Take the 2-minute yard quiz