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Yellow Monkeyflower

Mimulus guttatus

Yellow Monkeyflower, also known as Seep Monkeyflower or Common Monkeyflower, is a herbaceous perennial that thrives in moist to wet environments such as streambanks, wet meadows, and pond edges. Typically growing to about 2 feet in height, this plant features light green, oval to lance-shaped leaves and produces an abundance of bright yellow flowers with some brown-red spots inside the throat. These blooms appear from late spring through summer, providing a long-lasting display of color. The flowers are particularly attractive to bees and hummingbirds, making Yellow Monkeyflower a valuable addition to any garden focused on supporting pollinator health.

Details

Height12” - 30”
Spread24"
Bloom SeasonMarch – September
Soil Types
clayClay
loamLoam
sandSand
Soil Moisture
moistMoist
wetWet
Sun Exposure
partSunPart Sun
fullSunFull Sun

Range Map

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Ecological Benefits

Maintenance Tips

  • Prefers consistently moist soil; ideal for areas that are naturally damp or have supplemental watering in dryer zones.
  • Deadheading is not necessary but can encourage more blooms and maintain a tidy appearance.
  • Thrives in wet, well-drained soils; intolerant of drought conditions but can adapt to temporary dry spells.
  • Apply a layer of organic mulch to retain soil moisture and suppress weeds, particularly in warmer climates where the soil may dry out faster.
  • Monitor for signs of mildew or other fungal diseases, which can occur in humid conditions. Ensure good air circulation and avoid overly dense planting.

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