North America Native Plant

Oceanblue Phacelia

Botanical name: Phacelia ranunculacea

USDA symbol: PHRA3

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Oceanblue Phacelia: A Delightful Native Annual for Wet Spots and Woodland Gardens If you’re looking for a charming native wildflower that thrives in those tricky moist spots in your garden, let me introduce you to oceanblue phacelia (Phacelia ranunculacea). This delightful little annual might not be the showiest plant in ...

Oceanblue Phacelia: A Delightful Native Annual for Wet Spots and Woodland Gardens

If you’re looking for a charming native wildflower that thrives in those tricky moist spots in your garden, let me introduce you to oceanblue phacelia (Phacelia ranunculacea). This delightful little annual might not be the showiest plant in your garden, but it’s definitely one of the most useful – especially if you’re dealing with wet soils or want to create a naturalized woodland setting.

What Makes Oceanblue Phacelia Special?

Oceanblue phacelia is a true native gem, naturally occurring across nine states in the eastern and central United States: Alabama, Arkansas, Illinois, Indiana, Kentucky, Missouri, Ohio, Tennessee, and West Virginia. As a native plant, it’s perfectly adapted to local conditions and plays an important role in supporting regional ecosystems.

This annual forb (that’s just a fancy way of saying it’s a non-woody flowering plant that completes its life cycle in one year) produces clusters of small, delicate blue to lavender flowers that are absolutely beloved by pollinators. The flowers arrange themselves in characteristic coiled clusters that slowly unfurl as they bloom – it’s like nature’s own little spiral staircase!

Where Does It Fit in Your Garden?

Oceanblue phacelia really shines in specific garden settings:

  • Woodland gardens: Perfect for naturalizing under trees and along woodland edges
  • Rain gardens: Its facultative wetland status means it loves moisture but can handle drier periods too
  • Native plant gardens: An excellent choice for authentic regional plant communities
  • Pollinator gardens: Small but mighty when it comes to attracting native bees and butterflies
  • Naturalized areas: Great for filling in gaps and creating ground cover

Growing Oceanblue Phacelia Successfully

The beauty of this plant lies in its adaptability and low-maintenance nature. Here’s what you need to know to grow it successfully:

Ideal Growing Conditions

  • Light: Partial shade to full sun (though it appreciates some protection from harsh afternoon sun)
  • Soil: Moist to wet soils, but adaptable to various soil types
  • Moisture: Consistent moisture is key – this plant doesn’t like to dry out completely
  • Hardiness: Thrives in USDA zones 4-8

Planting and Care Tips

  • Seeding: Direct sow seeds in fall or early spring when soil is naturally moist
  • Maintenance: Once established, it requires minimal care – just ensure consistent moisture
  • Self-seeding: This annual readily self-seeds, so you’ll likely see it return year after year
  • Spacing: Allow plants room to spread as they can form nice colonies over time

Why Choose Oceanblue Phacelia?

This might not be the flashiest plant in your garden center, but oceanblue phacelia offers something special that many gardeners desperately need: a reliable native solution for wet, partially shaded areas. Its facultative wetland status across multiple regions means it’s incredibly versatile – happy in wetlands but perfectly content in regular garden soil too.

The pollinator benefits alone make it worth growing. Those small blue flowers might look delicate, but they’re powerhouses when it comes to supporting native bees, butterflies, and other beneficial insects. Plus, as an annual that readily self-seeds, you get the satisfaction of a plant that takes care of itself while contributing to local biodiversity.

Is This Plant Right for You?

Consider oceanblue phacelia if you:

  • Have moist or wet areas in your garden that need coverage
  • Want to support native pollinators
  • Love low-maintenance plants that naturalize easily
  • Are creating a woodland or native plant garden
  • Live within its native range and want to garden with regional plants

While it might not be the star of your garden show, oceanblue phacelia is definitely the reliable supporting actor that makes everything else look better. It’s the kind of plant that quietly does its job, supports the ecosystem, and rewards you with gentle beauty year after year.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Atlantic and Gulf Coastal Plain

FACW

Facultative Wetland - Plants with this status usually occurs in wetlands but may occur in non-wetlands

Eastern Mountains and Piedmont

FACW

Facultative Wetland - Plants with this status usually occurs in wetlands but may occur in non-wetlands

Midwest

FACW

Facultative Wetland - Plants with this status usually occurs in wetlands but may occur in non-wetlands

Oceanblue 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 ranunculacea (Nutt.) Constance - oceanblue phacelia

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