Seep Monkeyflower (Mimulus guttatus)

Seep Monkeyflower

Mimulus guttatus

Bright spotted blooms glow like sunny confetti along wet banks. Herbaceous perennial; common name: Seep Monkeyflower.

Partial sun
2–3/week
Beginner
🌱

Plant Needs

☀️
Sunlight Partial sun to full sun; tolerates light shade in hot climates to prevent leaf scorch
💧
Watering Keep soil consistently moist; thrives in boggy or seepage conditions, tolerates shallow standing water
🌡️
Temperature Hardy to light frost; prefers cool to temperate growing conditions, avoid extreme heat above 30°C
🔍

Characteristics

  • Leaf: Opposite, oval to lanceolate leaves with serrated margins, bright green and slightly succulent
  • Flower: Tubular yellow blooms with reddish-brown spots on lower lip, 2–4 cm wide
  • Stem: Succulent, branching green stems that root at nodes in moist soil
🛠️

Care Guide

Watering

Maintain constant soil moisture; add water when top 1 cm feels dry

Fertilization

Diluted balanced feed every 2 weeks. Avoid over-fertilization to prevent leggy, floppy growth

Composted banana peel tea:Steep fully composted banana peels in water for 24 hours; dilute 1:20 for root drench to avoid nutrient burn
Pruning
  • Deadhead spent blooms to encourage continuous flowering throughout the growing season
  • Trim leggy stems in mid-summer to promote bushier, compact growth
  • Cut back to basal growth in late autumn to prepare for winter dormancy
⚠️

Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported toxicity

Humans: Non-toxic to humans; no known adverse health effects from ingestion or contact

📖

Garden Uses & Culture

Culture: N/A

Usage: Ornamental for bog gardens, rain gardens, and native plant landscapes; attracts pollinators like bees and hummingbirds