Fringed Checkerbloom
Sidalcea diploscypha
Last reviewed: August 2026

Toxicity unknown
Fringed Checkerbloom (Sidalcea diploscypha) 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
8"–20" H × 8"–12" W
Bloom
Apr, May, Jun
Native to
CA, OR
Pollinators
native bees
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Fringed checkerbloom is an annual forb with rounded, lobed leaves and pink to lavender flowers with distinctively fringed petal tips. It grows in open grassland, including mineral-poor serpentine soils.
Wildlife value
Host plant for West Coast Lady.
The flowers are visited by native bees, including mallow specialists, and the genus is a documented larval host for the West Coast Lady butterfly.
Common questions
- How much sun does Fringed Checkerbloom need?
- Fringed Checkerbloom grows best in full sun conditions.
- When does Fringed Checkerbloom bloom?
- Fringed Checkerbloom blooms in April, May, and June.
- Where is Fringed Checkerbloom native?
- Fringed Checkerbloom (Sidalcea diploscypha) is native to CA, OR, per vouchered herbarium specimen records and regional native plant society lists.
- What butterflies or moths does Fringed Checkerbloom host?
- Fringed Checkerbloom is a larval host plant for West Coast Lady.
Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
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