Native Plants

Congdon’s Monkeyflower

Mimulus congdonii

USDA symbol: MICO2

annual forb

Lower 48 states: native

Meet Congdon’s monkeyflower (Mimulus congdonii), a delightful little California native that brings cheerful yellow blooms and ecological value to gardens throughout the Golden State. This petite annual wildflower might be small in stature, but it packs a punch when it comes to supporting local wildlife and adding natural charm to ...

Congdon’s Monkeyflower: A Charming California Native for Your Garden

Meet Congdon’s monkeyflower (Mimulus congdonii), a delightful little California native that brings cheerful yellow blooms and ecological value to gardens throughout the Golden State. This petite annual wildflower might be small in stature, but it packs a punch when it comes to supporting local wildlife and adding natural charm to your landscape.

Getting to Know Congdon’s Monkeyflower

Congdon’s monkeyflower is an annual forb—essentially a non-woody flowering plant that completes its entire life cycle in one growing season. Don’t let the monkey in its name fool you; this plant gets its common name from the flowers’ resemblance to a grinning monkey face when viewed from the front. The botanical world also knows this plant by several scientific synonyms, including Eunanus congdonii and Mimulus modestus, reflecting its complex taxonomic history.

Where Does It Call Home?

This native beauty is exclusively Californian, naturally occurring in the Sierra Nevada foothills and surrounding areas. As a true California native, it’s perfectly adapted to the state’s unique climate patterns and plays an important role in local ecosystems. Its native status means it has co-evolved with local wildlife and is an excellent choice for gardeners looking to support regional biodiversity.

  • Species observed
  • No observations

What Makes It Garden-Worthy?

Congdon’s monkeyflower offers several compelling reasons to include it in your landscape:

  • Pollinator magnet: Its small, tubular yellow flowers attract native bees and other beneficial insects
  • Low maintenance: Once established, it requires minimal intervention
  • Authentic habitat: Helps create genuine California native plant communities
  • Seasonal interest: Provides colorful blooms during its growing season
  • Ecological value: Supports local food webs and wildlife

Perfect Garden Settings

This adaptable little plant thrives in several garden styles:

  • Native plant gardens: Essential for authentic California landscapes
  • Rock gardens: Its compact size works beautifully among stones
  • Naturalized areas: Perfect for wildflower meadows and informal plantings
  • Xerophytic gardens: Ideal for water-wise landscaping
  • Educational gardens: Great for teaching about native plant communities

Growing Conditions and Care

Congdon’s monkeyflower is refreshingly undemanding once you understand its preferences:

Sunlight: Enjoys full sun to partial shade, adapting well to various light conditions throughout the day.

Soil: Thrives in well-draining soils and can handle both sandy and clay conditions, as long as water doesn’t sit around the roots.

Water needs: Shows facultative wetland status, meaning it can handle both moist and drier conditions. During the growing season, moderate water helps it flourish, but it can tolerate some drought once established.

Climate zones: Best suited for USDA hardiness zones 8-10, which aligns perfectly with its California native range.

Planting and Care Tips

Since Congdon’s monkeyflower is an annual, you’ll be starting fresh each year—but that’s part of its charm!

  • Timing: Sow seeds in fall or early spring to work with California’s natural rainfall patterns
  • Seeding: Scatter seeds directly where you want them to grow, as many annuals prefer direct seeding
  • Spacing: Allow adequate room for air circulation to prevent fungal issues
  • Maintenance: Minimal care required once established; let it follow its natural growth cycle
  • Seed saving: Allow some plants to go to seed for natural reseeding next year

Wildlife and Pollinator Benefits

One of the most compelling reasons to grow Congdon’s monkeyflower is its value to local wildlife. The bright yellow flowers serve as a beacon for native pollinators, particularly small native bees that have co-evolved with California’s monkeyflower species. By planting this native annual, you’re providing authentic habitat and food sources that support the intricate web of life in California ecosystems.

Should You Plant It?

If you’re gardening in California and want to create authentic native habitat while enjoying charming seasonal blooms, Congdon’s monkeyflower deserves a spot in your garden. Its annual nature means you can experiment with different locations each year, and its low-maintenance character makes it perfect for both novice and experienced native plant gardeners.

This little wildflower represents the beauty of California’s native flora—unassuming yet essential, simple yet sophisticated. Give Congdon’s monkeyflower a try, and you might just find yourself charmed by its quiet contribution to your garden’s ecosystem.

Mimulus congdonii is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Mimulus congdonii is also known as:

Eunanus congdonii | USDA symbol: EUCO14
Eunanus douglasii var. parviflorus | USDA symbol: EUDOP
Eunanus kelloggii Curran ex Greene var. parviflorus | USDA symbol: EUKEP
Mimulus modestus | USDA symbol: MIMO5

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" — matching plants to their ideal growing conditions, so they'll thrive with less care and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection can be if you don't have the right information. While tags on nursery plants list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. You might be surprised to learn that popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. The table below gives insight into the preferred growing conditions of this plant throughout its geographical distribution.

Region
Preferred Habitat

Arid West (AZ, CA, CO, ID, MT, NV, NM, OR, TX, UT, WA, WY)

Facultative

Western Mountains, Valleys, and Coast (AZ, CA, CO, ID, MT, NV, NM, OR, SD, UT, WA, WY)

Facultative
Wetland Glossary
Obligate Wetland
Facultative Wetland
Facultative
Facultative Upland
Obligate Upland
Almost always occurs in wetlands
Usually occurs in wetlands but may occur in non-wetlands
Can occur in wetlands and non-wetlands
Usually occurs in non-wetlands but may occur in wetlands
Almost never occurs in wetlands

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Asteridae
Order: Scrophulariales
Family: Scrophulariaceae Juss. - Figwort family
Genus: Mimulus L. - monkeyflower

Species: Mimulus congdonii B.L. Rob. - Congdon's monkeyflower

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA