North America Native Plant

Waterleaf Phacelia

Botanical name: Phacelia hydrophylloides

USDA symbol: PHHY

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Waterleaf Phacelia: A Lesser-Known Native Wildflower Worth Discovering If you’re on the hunt for native plants that fly under the radar, waterleaf phacelia (Phacelia hydrophylloides) might just be the hidden gem you didn’t know you were looking for. This perennial wildflower is one of those quiet natives that doesn’t always ...

Waterleaf Phacelia: A Lesser-Known Native Wildflower Worth Discovering

If you’re on the hunt for native plants that fly under the radar, waterleaf phacelia (Phacelia hydrophylloides) might just be the hidden gem you didn’t know you were looking for. This perennial wildflower is one of those quiet natives that doesn’t always make the must-have plant lists, but that doesn’t mean it lacks charm or value in the garden.

What Is Waterleaf Phacelia?

Waterleaf phacelia is a native perennial forb – essentially a non-woody flowering plant that comes back year after year. As a member of the borage family, it shares DNA with some pretty spectacular wildflowers, though this particular species tends to keep a lower profile than its showier cousins like California bluebells.

Don’t let the waterleaf part of its name fool you into thinking it’s an aquatic plant. The name actually refers to the leaf shape, which can resemble that of waterleaf plants, though our phacelia friend is perfectly happy on dry land.

Where Does It Call Home?

This native beauty has staked its claim across three western states: California, Nevada, and Oregon. It’s a true child of the American West, adapted to the unique conditions and ecosystems of this region.

Should You Plant Waterleaf Phacelia?

Here’s where things get a bit tricky – and honestly refreshing in our world of overhyped miracle plants. Waterleaf phacelia is something of a botanical mystery. While we know it exists and where it grows, detailed information about its specific needs, appearance, and garden performance is surprisingly scarce in common gardening resources.

This could mean one of several things:

  • It’s a relatively uncommon species that hasn’t caught the attention of mainstream horticulture
  • It might have specific habitat requirements that make it challenging to cultivate
  • It could simply be overshadowed by more popular Phacelia species

The Phacelia Family Connection

While we can’t give you chapter and verse on waterleaf phacelia specifically, we do know that Phacelia species in general are beloved by pollinators, particularly bees. Many phacelias produce lovely clusters of blue, purple, or white flowers that create quite a buzz (literally) in the garden.

If you’re drawn to the idea of growing a native phacelia but want something with a more established track record, consider these well-documented alternatives:

  • California bluebells (Phacelia campanularia)
  • Tansy phacelia (Phacelia tanacetifolia)
  • Desert bluebells (Phacelia crenulata)

The Adventure of Growing Unknowns

If you’re the type of gardener who loves a good mystery and doesn’t mind a bit of experimentation, waterleaf phacelia could be your next project. Growing lesser-known natives can be incredibly rewarding – you become something of a plant pioneer, contributing to our collective knowledge about what works in cultivation.

Since specific growing information is limited, your best bet would be to:

  • Contact local native plant societies in California, Nevada, or Oregon
  • Reach out to botanical gardens or university extension programs in the native range
  • Connect with specialized native plant nurseries that might have experience with rare phacelias

A Word of Caution and Encouragement

If you do manage to track down waterleaf phacelia, make absolutely sure you’re getting it from a reputable source that ethically propagates their plants rather than wild-collecting them. With any less-common native, responsible sourcing is crucial for conservation.

The plant world is full of surprises, and sometimes the most rewarding garden experiences come from the species that don’t have Instagram-worthy hashtags or shelves of care guides written about them. Waterleaf phacelia might just be one of those special plants that rewards the patient, curious gardener with something truly unique.

Who knows? You might end up being one of the first to document how this native beauty performs in a garden setting. Now that’s what we call growing with purpose!

Waterleaf 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 hydrophylloides Torr. ex A. Gray - waterleaf phacelia

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