North America Native Plant

Gypsum Phacelia

Botanical name: Phacelia integrifolia var. integrifolia

USDA symbol: PHINI5

Life cycle: biennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Phacelia integrifolia Torr. var. typica J. Voss (PHINT2)   

Gypsum Phacelia: A Hidden Gem for Native Plant Gardens If you’re looking for a charming native wildflower that doesn’t demand much attention but delivers big on pollinator appeal, let me introduce you to gypsum phacelia. This delightful little plant might not be the flashiest flower in your garden, but it’s ...

Gypsum Phacelia: A Hidden Gem for Native Plant Gardens

If you’re looking for a charming native wildflower that doesn’t demand much attention but delivers big on pollinator appeal, let me introduce you to gypsum phacelia. This delightful little plant might not be the flashiest flower in your garden, but it’s definitely one of the hardest working!

Meet the Gypsum Phacelia

Gypsum phacelia (Phacelia integrifolia var. integrifolia) is a native forb that calls the American Southwest and south-central regions home. As a member of the waterleaf family, this unassuming plant packs a pollinator-friendly punch with its clusters of small, tubular flowers that range from soft blue to purple.

What makes this plant particularly interesting is its flexibility – it can live as an annual, biennial, or perennial depending on growing conditions. Think of it as the adaptable friend who’s happy whether the party lasts one night or three years!

Where Does It Naturally Grow?

True to its name, gypsum phacelia has a thing for gypsum soils and can be found across Arizona, Colorado, Kansas, New Mexico, Oklahoma, Texas, and Utah. It’s perfectly at home in the challenging conditions of the American West, where many other plants throw in the towel.

Why You’ll Want This Plant in Your Garden

Here’s where gypsum phacelia really shines – it’s a pollinator magnet! Those delicate flower clusters are like tiny landing pads for bees, butterflies, and other beneficial insects. If you’re trying to create a pollinator-friendly space, this native beauty should definitely be on your list.

The plant typically grows as a low-growing forb, making it perfect for:

  • Native wildflower gardens
  • Xeriscapes and drought-tolerant landscapes
  • Naturalized areas where you want something pretty but low-maintenance
  • Erosion control on slopes or disturbed areas

Growing Gypsum Phacelia Successfully

The good news? This plant is refreshingly easy-going. Having evolved in some pretty tough conditions, it’s not particularly fussy about much – except drainage.

Ideal Growing Conditions:

  • Soil: Well-draining, alkaline soils (it especially loves gypsum-rich soils, hence the name)
  • Sun: Full sun for best flowering
  • Water: Drought tolerant once established; avoid overwatering
  • Climate: Hardy in USDA zones 4-9

Planting and Care Tips:

  • Sow seeds directly in fall or early spring – this plant often does better from seed than transplants
  • Don’t amend heavy clay soils too much; just ensure good drainage
  • Water sparingly after establishment – think benign neglect
  • Deadhead spent flowers to encourage continued blooming if desired
  • Allow some plants to go to seed for natural reseeding

The Bottom Line

Gypsum phacelia might not be the star of your garden, but it’s definitely the reliable supporting actor that makes everything else look better. It’s native, low-maintenance, pollinator-friendly, and perfectly adapted to challenging growing conditions that would make other plants wilt.

If you’re gardening in the Southwest or south-central regions and want to add some authentic local color to your landscape while supporting native pollinators, gypsum phacelia deserves a spot in your garden. Just give it good drainage, some sunshine, and then step back and let it do its thing!

Gypsum 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 integrifolia Torr. - gypsum phacelia

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