North America Native Plant

Rockjasmine Monkeyflower

Botanical name: Mimulus androsaceus

USDA symbol: MIAN

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Mimulus palmeri A. Gray var. androsaceus (Curran ex Greene) A. Gray (MIPAA)   

Rockjasmine Monkeyflower: A Delicate California Native Worth Discovering Meet the rockjasmine monkeyflower (Mimulus androsaceus), a charming little annual wildflower that’s as unique as its intriguing name suggests. This petite California native might not be the showiest plant in the garden, but it has a quiet beauty that captures the essence ...

Rare plant alert!

Region: Conservation status by state

Status: S3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Rockjasmine Monkeyflower: A Delicate California Native Worth Discovering

Meet the rockjasmine monkeyflower (Mimulus androsaceus), a charming little annual wildflower that’s as unique as its intriguing name suggests. This petite California native might not be the showiest plant in the garden, but it has a quiet beauty that captures the essence of the Golden State’s diverse flora.

What Makes Rockjasmine Monkeyflower Special?

The rockjasmine monkeyflower belongs to the beloved monkeyflower family, known for their distinctive blooms that some say resemble tiny monkey faces. As an annual forb, this herbaceous plant completes its entire life cycle in one growing season, making it a fleeting but memorable addition to native plant gardens.

This species is exclusively native to California, making it a true Golden State endemic. You won’t find this little gem growing wild anywhere else in the world, which makes it both special and somewhat vulnerable.

A Word of Caution: Rarity Considerations

Before you rush out to find seeds, there’s something important to know: rockjasmine monkeyflower has a conservation status that’s somewhat uncertain (listed as S3?), suggesting it may be uncommon to rare within its native range. If you’re interested in growing this species, it’s crucial to source seeds or plants only from reputable native plant nurseries that use responsibly collected material. Never collect from wild populations.

Garden Appeal and Design Role

While rockjasmine monkeyflower may be small in stature, it can play several valuable roles in your California native garden:

  • Perfect for rock gardens and naturalized areas
  • Excellent choice for wildflower meadows and native plant mixes
  • Adds authentic California character to native landscapes
  • Supports local ecosystem diversity

Growing Conditions and Care

As a California native annual, rockjasmine monkeyflower has adapted to the state’s Mediterranean climate. While specific growing requirements for this species aren’t extensively documented, you can follow general guidelines for California native annuals:

  • Provide well-draining soil – like many California natives, it won’t tolerate soggy conditions
  • Plant in full sun to partial shade
  • Water sparingly once established, following natural rainfall patterns
  • Best suited for USDA hardiness zones 8-10

Planting and Propagation Tips

Since rockjasmine monkeyflower is an annual, it grows from seed each year. Here’s how to give it the best start:

  • Sow seeds in fall or early winter to mimic natural cycles
  • Scatter seeds on prepared soil surface – many California natives prefer surface sowing
  • Keep soil lightly moist until germination
  • Allow some plants to go to seed naturally for next year’s display

Pollinator and Wildlife Benefits

While specific information about rockjasmine monkeyflower’s wildlife interactions isn’t well-documented, members of the monkeyflower family typically attract small pollinators like native bees and beneficial insects. By growing this rare native, you’re supporting California’s unique biodiversity.

Should You Grow Rockjasmine Monkeyflower?

This delicate annual is perfect for gardeners who:

  • Want to support California’s native plant diversity
  • Enjoy discovering lesser-known native species
  • Have space for a naturalized or wildflower garden
  • Are committed to responsible native plant gardening

However, given its uncertain conservation status, this plant requires a thoughtful approach. Only pursue it if you can source it responsibly and are committed to helping preserve this unique piece of California’s natural heritage.

Remember, every native plant we grow in our gardens is a small act of conservation. The rockjasmine monkeyflower may be tiny, but it represents the incredible diversity that makes California’s flora so special.

Rockjasmine Monkeyflower

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Scrophulariales

Family

Scrophulariaceae Juss. - Figwort family

Genus

Mimulus L. - monkeyflower

Species

Mimulus androsaceus Curran ex Greene - rockjasmine monkeyflower

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