Seep Monkeyflower
Erythranthe guttata
Care
full sun, part shade
regular
wet to moist; stream margins and seeps
0–2ft tall , 0–2ft wide
Mar-Aug · yellow
Deciduous
Friendly
Prized
Throughout western North America near water
Bright yellow snapdragon-like flowers with red spots in throat
Great for rain gardens and water edges; spreads readily in moist conditions
Care Guide
Planting
Plant Seep Monkeyflower in fall or winter in a location with full sun to part shade. This plant thrives in wet to moist soil - ideally along stream margins, seeps, or in naturally wet landscapes - and actually tolerates slow drainage and standing water better than most garden plants. Space plants about 1–2 feet apart, as they spread aggressively and will fill in quickly.
After Planting
Water weekly for the first summer until established, then cut back to once a week or less during the growing season. Once established, this is an easy-care plant that needs minimal intervention; it's deciduous and will go dormant in summer heat or dry periods. The #1 mistake is underestimating how vigorously it spreads and self-seeds - plan to cut it back or pull plants periodically to prevent it from crowding out neighbors, especially in smaller spaces.
Endangered & Threatened Species Supported
California state threatened species
Wildlife Supported
Birds
Ground foraging for seeds in riparian areas post-bloom
Insects
Opportunistic nectar source; multiple generations utilize flowers Apr-Oct
Grassland butterfly utilizing nectar in riparian seep habitat