North America Native Plant

Parish’s Phacelia

Botanical name: Phacelia parishii

USDA symbol: PHPA2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Parish’s Phacelia: A Rare Desert Gem Worth Growing Responsibly If you’re looking to add some delicate purple charm to your southwestern garden while supporting native pollinators, Parish’s phacelia might just be the perfect addition. This lovely annual wildflower brings seasonal color and ecological benefits to desert landscapes, though there are ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ 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 ⚘

Parish’s Phacelia: A Rare Desert Gem Worth Growing Responsibly

If you’re looking to add some delicate purple charm to your southwestern garden while supporting native pollinators, Parish’s phacelia might just be the perfect addition. This lovely annual wildflower brings seasonal color and ecological benefits to desert landscapes, though there are some important considerations to keep in mind before adding it to your garden.

What is Parish’s Phacelia?

Parish’s phacelia (Phacelia parishii) is a native annual forb that calls the American Southwest home. As a member of the borage family, this herbaceous plant lacks woody tissue and completes its entire life cycle within a single growing season. Its delicate structure and seasonal nature make it a charming addition to naturalistic gardens and wildflower displays.

Where Does It Grow Naturally?

This southwestern native has a relatively limited range, naturally occurring in Arizona, California, and Nevada. You’ll typically find it thriving in the arid landscapes of these states, where it has adapted to the challenging desert conditions.

Important Conservation Consideration

Before we dive into growing tips, there’s something crucial to know: Parish’s phacelia has a Global Conservation Status of S2S3, which indicates some level of conservation concern. While this doesn’t mean it’s critically endangered, it does mean we should be thoughtful about how we source and grow this plant. If you decide to add it to your garden, make sure to obtain seeds or plants only from reputable, responsible sources that don’t impact wild populations.

Why Grow Parish’s Phacelia?

Despite its rarity status, there are several compelling reasons to consider this native beauty:

  • Supports native pollinators with its attractive blue to purple flowers
  • Adds seasonal interest to desert and native plant gardens
  • Requires minimal water once established, perfect for xeriscaping
  • Helps preserve regional biodiversity when grown responsibly
  • Creates naturalistic wildflower displays in appropriate climates

Garden Design and Landscape Role

Parish’s phacelia works beautifully in several garden styles. It’s particularly well-suited for desert gardens, xeriscapes, native plant gardens, and wildflower meadows. The plant’s delicate flowers and herbaceous growth habit make it an excellent choice for adding texture and seasonal color without overwhelming other plants. Consider using it as part of a mixed native planting or as a seasonal accent in rock gardens.

Growing Conditions and Care

This desert native is surprisingly easy to grow when you match its preferred conditions:

  • Sunlight: Full sun is best
  • Soil: Well-draining soils are essential; avoid heavy clay or waterlogged conditions
  • Water: Low water requirements once established, though some supplemental irrigation may help during germination
  • Climate: Best suited for USDA hardiness zones 8-10

Planting and Propagation Tips

Since growing conditions and propagation methods weren’t specified in the available data, work with local native plant societies or extension services for specific guidance in your area. Generally, annual wildflowers like phacelia are often grown from seed, with fall or early spring planting being common for desert species.

Pollinator and Wildlife Benefits

Like many members of the borage family, Parish’s phacelia is likely an excellent pollinator plant, though specific wildlife benefits weren’t detailed in available resources. The flower structure typical of Phacelia species makes them particularly attractive to native bees, butterflies, and other beneficial insects.

Wetland Considerations

Parish’s phacelia has a Facultative Upland status in both the Arid West and Western Mountains regions, meaning it usually grows in non-wetland areas but may occasionally appear in wetland edges. This makes it a good choice for typical garden conditions rather than rain gardens or bog areas.

The Bottom Line

Parish’s phacelia is a charming native annual that can add both beauty and ecological value to southwestern gardens. However, its conservation status means you should source it responsibly and consider it a special addition rather than a mass planting. When grown thoughtfully, it’s a wonderful way to support native biodiversity while enjoying the delicate beauty of a true southwestern native.

Remember: always purchase from reputable sources that don’t collect from wild populations, and consider this plant a special treasure worthy of careful cultivation and appreciation.

Parish’s 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 parishii A. Gray - Parish's phacelia

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