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Jagged Chickweed

Holosteum umbellatum

Last reviewed: August 2026

Jagged Chickweed (Holosteum umbellatum)
Photo: Johann Georg Sturm, Painted by Jacob Sturm; published by Kurt Stüber / Wikimedia Commons (Public domain)

Toxicity unknown

Jagged Chickweed (Holosteum umbellatum) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

full sun

Water

low

Size

4"–12" H × 2"–6" W

Bloom

Mar, Apr, May

Pollinators

bees, beetles

Native alternatives to Jagged Chickweed

Jagged Chickweed is not native to the United States. These natives fill a similar role in a planting, matched on bloom season, bloom color and mature size.

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Jagged chickweed is a small annual wildflower that forms low mats of delicate foliage topped with tiny white flowers in spring. This diminutive plant blooms from March through May before completing its life cycle.

In an HOA neighborhood

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

Works well in: backyard only.

  • Annual growth pattern creates bare spots after die-back
  • Small weedy appearance may not meet landscaping standards
  • Can spread unpredictably through self-seeding

Wildlife value

The small white flowers provide early season nectar for bees and beetles when few other plants are blooming.

Common questions

How much sun does Jagged Chickweed need?
Jagged Chickweed grows best in full sun conditions.
When does Jagged Chickweed bloom?
Jagged Chickweed blooms in March, April, and May.
What pollinators does Jagged Chickweed attract?
Jagged Chickweed draws bees and beetles.
Is Jagged Chickweed HOA-friendly?
Jagged Chickweed takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

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

Planning a bed around it? Start a free plan with this plant

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