North Idaho Monkeyflower: A Little-Known Native Annual
If you’re searching for truly regional native plants, you might have stumbled across the North Idaho monkeyflower (Mimulus clivicola). This annual wildflower represents one of those botanical gems that’s deeply rooted in specific landscapes but remains relatively mysterious to most gardeners.




What Is North Idaho Monkeyflower?
North Idaho monkeyflower is a native annual forb belonging to the snapdragon family. As a forb, it’s essentially a soft-stemmed herbaceous plant—think of it as nature’s version of a wildflower that completes its entire life cycle in just one growing season. Unlike perennials that return year after year, this little plant lives fast and dies young, relying on seeds to continue its legacy.
Botanically known as Mimulus clivicola, you might occasionally see it listed under its synonym Eunanus clivicola in older botanical references. The clivicola part of its name gives us a hint about its preferred habitat—it roughly translates to slope dweller, suggesting this plant has adapted to life on hillsides and sloping terrain.
Where Does It Call Home?
This monkeyflower is a true child of the Pacific Northwest and northern Rockies, naturally occurring across Idaho, Montana, Oregon, and Washington. Its common name says it all—this is very much a North Idaho specialty, though its range extends into neighboring states where similar conditions exist.
Should You Grow North Idaho Monkeyflower?
Here’s where things get a bit tricky. While North Idaho monkeyflower is undeniably a legitimate native plant worthy of conservation and appreciation, information about successfully growing it in garden settings is extremely limited. This presents both challenges and opportunities for the adventurous native plant gardener.
The Appeal of Growing It
- It’s genuinely native to the region, supporting local ecosystems
- As an annual, it could potentially fill seasonal gaps in native plant gardens
- Growing rare or lesser-known natives contributes to plant diversity
- It represents the authentic flora of the inland Pacific Northwest
The Challenges You’ll Face
- Limited availability—you’re unlikely to find this at your local nursery
- Minimal horticultural information about growing requirements
- Unknown garden performance and aesthetic qualities
- Seed sources may be difficult to locate
What We Don’t Know (But Wish We Did)
Unfortunately, North Idaho monkeyflower falls into that category of native plants that haven’t received much attention from the horticultural world. We don’t have clear information about its specific growing conditions, water needs, soil preferences, or even what it looks like in full bloom. This lack of information doesn’t mean it’s not worth growing—it just means you’d be pioneering its cultivation.
Growing Tips for the Adventurous
If you’re determined to try growing North Idaho monkeyflower, here are some educated guesses based on its native habitat and related species:
- Focus on well-draining slopes or hillsides in your garden
- Provide conditions similar to its native range—likely preferring some moisture but good drainage
- Since it’s an annual, plan to collect seeds if you want it to return
- Consider it for naturalized or wildflower meadow areas rather than formal gardens
- Be patient—native annuals sometimes take time to establish in new locations
The Bottom Line
North Idaho monkeyflower represents one of those intriguing native plants that reminds us how much we still don’t know about our local flora. While it may not be the easiest plant to incorporate into your garden, it offers the satisfaction of growing something truly regional and authentic to the inland Northwest.
If you can’t locate North Idaho monkeyflower or prefer something with more established growing information, consider other native monkeyflowers like yellow monkeyflower (Mimulus guttatus) or Lewis’s monkeyflower (Mimulus lewisii), which offer similar ecological benefits with better-understood cultivation requirements.
Sometimes the most rewarding gardening adventures involve plants that challenge us to think beyond the typical nursery offerings. North Idaho monkeyflower might just be one of those plants worth the extra effort.