North America Native Plant

Patch Phacelia

Botanical name: Phacelia splendens

USDA symbol: PHSP3

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Patch Phacelia: A Rare Southwestern Gem Worth Growing Responsibly If you’re looking to add a touch of wild southwestern beauty to your garden while supporting local pollinators, patch phacelia (Phacelia splendens) might just be the perfect addition. This charming native wildflower brings delicate purple-blue blooms and ecological benefits to gardens ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: 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 ⚘

Patch Phacelia: A Rare Southwestern Gem Worth Growing Responsibly

If you’re looking to add a touch of wild southwestern beauty to your garden while supporting local pollinators, patch phacelia (Phacelia splendens) might just be the perfect addition. This charming native wildflower brings delicate purple-blue blooms and ecological benefits to gardens across its native range, though its rarity makes responsible sourcing essential.

What Is Patch Phacelia?

Patch phacelia is an annual forb native to the southwestern United States. As a forb, it’s a non-woody flowering plant that completes its entire life cycle in a single growing season. Despite being an annual, this hardy little wildflower can make a big impact in the right garden setting.

Where Does It Grow Naturally?

This southwestern native calls Colorado and New Mexico home, thriving in the unique conditions of these high-desert regions. Its natural range is quite limited, which contributes to its vulnerable conservation status.

Why Consider Growing Patch Phacelia?

There are several compelling reasons to include this native beauty in your landscape:

  • Pollinator magnet: The delicate flowers attract bees, butterflies, and other beneficial insects
  • True native: Perfect for authentic regional landscaping in Colorado and New Mexico
  • Low maintenance: Once established, it requires minimal care
  • Drought tolerant: Well-suited to xeriscaping and water-wise gardens
  • Unique aesthetic: Offers a distinctive southwestern wildflower look

Important Conservation Considerations

Before rushing to add patch phacelia to your garden, it’s crucial to understand that this plant has a Global Conservation Status of S3, meaning it’s considered vulnerable. With typically only 21 to 100 occurrences and between 3,000 to 10,000 individuals in the wild, this species faces potential extirpation risks.

If you choose to grow patch phacelia, please only source seeds or plants from reputable native plant nurseries that ethically propagate their stock. Never collect from wild populations, as this could further threaten already vulnerable populations.

Best Garden Settings

Patch phacelia works beautifully in:

  • Native plant gardens focused on southwestern species
  • Xeriscaped landscapes
  • Wildflower meadows and naturalized areas
  • Pollinator gardens
  • Rock gardens with good drainage

Growing Conditions and Care

This hardy southwestern native thrives in USDA hardiness zones 4-8 and prefers:

  • Sunlight: Full sun exposure
  • Soil: Well-draining soils; tolerates poor, rocky conditions
  • Water: Drought-tolerant once established; avoid overwatering
  • Maintenance: Minimal care required after establishment

Planting Tips

As an annual, patch phacelia is typically grown from seed:

  • Direct sow seeds in fall or early spring
  • Lightly cover seeds with soil
  • Provide occasional water until germination occurs
  • Allow plants to self-seed for natural population renewal
  • Avoid heavy fertilization, which can reduce flowering

The Bottom Line

Patch phacelia offers gardeners in Colorado and New Mexico a wonderful opportunity to grow a truly local native that supports regional wildlife. However, its vulnerable conservation status means we must approach cultivation thoughtfully and responsibly. If you can source ethically propagated seeds or plants, this charming wildflower can add authentic southwestern character to your native garden while providing valuable pollinator habitat. Just remember: responsible gardening means protecting wild populations while enjoying the beauty of native plants in our cultivated spaces.

Patch 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 splendens Eastw. - patch phacelia

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