Clammy Cuphea
Cuphea viscosissima
Last reviewed: June 2026

Light
full sun
Water
medium
Size
12"–24" H × 6"–12" W
Bloom
Jul, Aug, Sep
Native to
AL, AR, CT, DE and 26 more states
Pollinators
bees, butterflies
Clammy cuphea is a native annual wildflower that produces small, tubular purple flowers from July through September. This compact plant grows 12-24 inches tall with a neat, upright habit that fits well in cultivated gardens.
In an HOA neighborhood
Clammy Cuphea is an HOA-friendly choice. Maintenance level: moderate. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
- May self-seed and appear weedy if not managed
Wildlife value
The tubular flowers attract both bees and butterflies throughout the summer blooming period. As a native annual, it provides reliable nectar sources during late summer when many other flowers are fading.
Common questions
- How much sun does Clammy Cuphea need?
- Clammy Cuphea grows best in full sun conditions.
- When does Clammy Cuphea bloom?
- Clammy Cuphea blooms in July, August, and September.
- Where is Clammy Cuphea native?
- Clammy Cuphea (Cuphea viscosissima) is native to AL, AR, CT, DE and 26 more states, per the USDA PLANTS Database and regional native plant society lists.
- What pollinators does Clammy Cuphea attract?
- Clammy Cuphea draws bees and butterflies.
- Is Clammy Cuphea HOA-friendly?
- Clammy Cuphea is generally an HOA-friendly choice in the right placement, with moderate maintenance.
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 Cuphea? 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