Yellow sundrops
Calylophus serrulatus
Last reviewed: July 2026
Light
full sun
Water
low
Size
6"–15" H × 12"–18" W
Bloom
May, Jun, Jul, Aug
Native to
CO, KS, NE, NM and 4 more states
Pollinators
bees, moths
Browse plants for this ecoregion
Compact clumping perennial with narrow, finely serrated leaves and bright yellow cup-shaped flowers held just above the foliage. Forms neat low mounds well suited to dry, sunny beds.
In an HOA neighborhood
Yellow sundrops is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
Wildlife value
Host plant for white-lined sphinx moth.
Flowers open toward evening, providing nectar for moths and bees.
Common questions
- How much sun does Yellow sundrops need?
- Yellow sundrops grows best in full sun conditions.
- When does Yellow sundrops bloom?
- Yellow sundrops blooms in May, June, July, and August.
- Where is Yellow sundrops native?
- Yellow sundrops (Calylophus serrulatus) is native to CO, KS, NE, NM and 4 more states, per the USDA PLANTS Database and regional native plant society lists.
- What butterflies or moths does Yellow sundrops host?
- Yellow sundrops is a larval host plant for white-lined sphinx moth.
- Is Yellow sundrops HOA-friendly?
- Yellow sundrops is generally an HOA-friendly choice in the right placement, with low 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.
Does Yellow sundrops fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.