Clammy Hedgehyssop
Gratiola neglecta
Last reviewed: June 2026
Light
part sun
Water
high
Size
4"–12" H × 2"–6" W
Bloom
May, Jun, Jul, Aug, Sep
Native to
AL, AR, AZ, CA and 43 more states
Pollinators
bees, beetles
Browse plants for this ecoregion
Clammy hedgehyssop is a small native annual that thrives in moist to wet soils and partial sun conditions. This compact plant produces tiny white or pale blue flowers throughout the growing season from late spring through early fall. It naturally occurs in wetlands, pond edges, and other consistently moist areas.
In an HOA neighborhood
Clammy Hedgehyssop takes more care to keep looking intentional in a front yard. Maintenance level: moderate. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Very small stature can appear weedy
- Annual nature means gaps in coverage
- Requires consistently moist soil which may look unkempt
Wildlife value
The small flowers attract native bees and beetles during its extended blooming period from May through September. As a native wetland plant, it provides habitat value in moisture-retentive garden areas.
Common questions
- How much sun does Clammy Hedgehyssop need?
- Clammy Hedgehyssop grows best in part sun conditions.
- When does Clammy Hedgehyssop bloom?
- Clammy Hedgehyssop blooms in May, June, July, August, and September.
- Where is Clammy Hedgehyssop native?
- Clammy Hedgehyssop (Gratiola neglecta) is native to AL, AR, AZ, CA and 43 more states, per the USDA PLANTS Database and regional native plant society lists.
- What pollinators does Clammy Hedgehyssop attract?
- Clammy Hedgehyssop draws bees and beetles.
- Is Clammy Hedgehyssop HOA-friendly?
- Clammy Hedgehyssop 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 Clammy Hedgehyssop? 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