North America Native Plant

Stinging Phacelia

Botanical name: Phacelia malvifolia

USDA symbol: PHMA2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Phacelia malvifolia Cham. var. loasifolia (Benth.) Brand (PHMAL)   

Stinging Phacelia: A Native California Wildflower Worth Getting to Know Don’t let the name fool you – stinging phacelia (Phacelia malvifolia) might sound intimidating, but this charming native wildflower is actually a delightful addition to any naturalistic garden. This annual California native brings a touch of wild beauty to your ...

Stinging Phacelia: A Native California Wildflower Worth Getting to Know

Don’t let the name fool you – stinging phacelia (Phacelia malvifolia) might sound intimidating, but this charming native wildflower is actually a delightful addition to any naturalistic garden. This annual California native brings a touch of wild beauty to your landscape while supporting local pollinators and wildlife.

What Is Stinging Phacelia?

Stinging phacelia is an annual forb – essentially a soft-stemmed herbaceous plant that completes its entire life cycle in one growing season. As a native species of the lower 48 states, it naturally occurs in California and Oregon, where it has evolved alongside local wildlife and pollinators for thousands of years.

This lovely wildflower is found throughout California and Oregon, thriving in the diverse climates and soil conditions these states offer.

Why Grow Stinging Phacelia in Your Garden?

There are several compelling reasons to consider adding this native beauty to your landscape:

  • Pollinator magnet: The small, bell-shaped blue to purple flowers are absolutely irresistible to native bees, butterflies, and other beneficial insects
  • Low maintenance: As a drought-tolerant native, it requires minimal care once established
  • Naturalistic appeal: Perfect for wildflower meadows and native plant gardens
  • Self-sustaining: This annual readily self-seeds, ensuring future generations in your garden
  • Ecological value: Supporting native plants helps preserve local ecosystems

Garden Design and Landscape Uses

Stinging phacelia shines brightest in naturalistic settings. Consider incorporating it into:

  • Native plant gardens
  • Wildflower meadows
  • Pollinator gardens
  • Naturalistic landscape borders
  • Areas where you want seasonal color and texture

The fuzzy appearance created by the prominent stamens adds wonderful texture to plant combinations, while the blue to purple flower clusters provide beautiful seasonal color.

Growing Conditions and Care

One of the best things about stinging phacelia is how adaptable and easy-going it is. Here’s what this native wildflower prefers:

  • Soil: Well-draining soils; can tolerate poor soil conditions
  • Water: Drought-tolerant once established; avoid overwatering
  • Sunlight: Typically performs well in full sun to partial shade
  • Climate: Suitable for USDA hardiness zones 8-10

Planting and Care Tips

Getting started with stinging phacelia is refreshingly simple:

  • Timing: Direct seed in fall or early spring for best results
  • Planting: Scatter seeds directly in the garden where you want them to grow
  • Maintenance: Minimal care required – just let nature do its thing!
  • Future seasons: Allow plants to set seed for natural reseeding

Since this is an annual plant, you’ll want to let some flowers go to seed if you’d like stinging phacelia to return next year. The good news is that it’s quite good at self-seeding in suitable conditions.

A Perfect Choice for Native Plant Enthusiasts

Stinging phacelia represents everything wonderful about native plants – it’s beautiful, supports local wildlife, requires minimal resources, and connects your garden to the natural heritage of California and Oregon. Whether you’re creating a dedicated native plant garden or simply want to add some wild beauty to your landscape, this charming annual is definitely worth considering.

By choosing native plants like stinging phacelia, you’re not just creating a beautiful garden – you’re participating in the conservation of local ecosystems and providing crucial habitat for native pollinators and wildlife. Now that’s something to feel good about!

Stinging Phacelia

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

Solanales

Family

Hydrophyllaceae R. Br. - Waterleaf family

Genus

Phacelia Juss. - phacelia

Species

Phacelia malvifolia Cham. - stinging phacelia

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