North America Native Plant

Seaside Brookweed

Botanical name: Samolus valerandi parviflorus

USDA symbol: SAVAP

Life cycle: perennial

Habit: forb

Native status: Native to Canada âš˜ Native to the lower 48 states âš˜ Native to Puerto Rico  

Synonyms: Samolus floribundus Kunth (SAFL10)  âš˜  Samolus parviflorus Raf. (SAPA9)   

Seaside Brookweed: A Hardy Native for Wet Spots in Your Garden If you’ve got a soggy spot in your yard that seems impossible to plant, meet your new best friend: seaside brookweed (Samolus valerandi parviflorus). This unassuming little native might not win any beauty contests, but it’s exactly what your ...

Seaside Brookweed: A Hardy Native for Wet Spots in Your Garden

If you’ve got a soggy spot in your yard that seems impossible to plant, meet your new best friend: seaside brookweed (Samolus valerandi parviflorus). This unassuming little native might not win any beauty contests, but it’s exactly what your challenging wet areas have been waiting for. Think of it as the reliable friend who’s always there when you need them – not flashy, but dependable as the day is long.

What Exactly Is Seaside Brookweed?

Seaside brookweed is a perennial forb, which is just a fancy way of saying it’s a non-woody herbaceous plant that comes back year after year. Don’t let the name fool you – while it loves coastal areas, this adaptable native thrives far inland too. You might also see it listed under its synonyms Samolus floribundus or Samolus parviflorus in older gardening references.

This plant is as American as apple pie, being native to Canada, all of the lower 48 states, and Puerto Rico. That’s quite the geographic range! You’ll find it naturally growing everywhere from the soggy shores of Maine to the desert springs of Arizona.

Where Does It Grow?

Seaside brookweed has one of the most impressive native ranges you’ll find. It grows naturally in Alabama, Arizona, Arkansas, California, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, Missouri, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Puerto Rico. In Canada, you’ll spot it in New Brunswick, Nova Scotia, Ontario, Prince Edward Island, and Quebec.

Why Your Garden Might Love This Plant

Here’s where seaside brookweed really shines: it’s classified as an obligate wetland plant across every region where it grows. That means it almost always occurs in wetlands – making it perfect for those perpetually damp areas where other plants throw in the towel.

Aesthetic Appeal

While seaside brookweed won’t stop traffic with its looks, it has a quiet charm. The plant produces small, delicate white flowers arranged in terminal clusters that dance above succulent-like leaves. It’s the kind of understated beauty that grows on you – literally and figuratively.

Perfect Garden Situations

This native star is tailor-made for:

  • Rain gardens that collect runoff
  • Bog gardens and wetland plantings
  • Pond and water feature margins
  • Coastal gardens that deal with salt spray
  • Native plant gardens focused on local ecology
  • Problem wet spots where nothing else will grow

Growing Seaside Brookweed Successfully

Hardiness and Climate

Thanks to its enormous native range, seaside brookweed is incredibly adaptable, thriving in USDA hardiness zones 3 through 10. Whether you’re dealing with frigid Canadian winters or steamy Southern summers, this plant has probably evolved to handle your local conditions.

Growing Conditions

The secret to success with seaside brookweed is simple: keep it wet! This plant demands consistently moist to wet soil conditions. It’s happiest in full sun to partial shade and is remarkably tolerant of salt spray, making it excellent for coastal properties.

Planting and Care Tips

  • Plant in spring after the last frost date
  • Ensure consistent moisture – this plant does not tolerate drought
  • Choose locations with full sun to partial shade
  • Minimal fertilizer needed – it’s adapted to nutrient-poor wetland soils
  • Allow it to self-seed for naturalized plantings
  • Virtually pest and disease-free

Wildlife and Pollinator Benefits

While seaside brookweed might seem modest, it plays an important role in wetland ecosystems. The small white flowers attract various small pollinators, particularly flies and tiny native bees that specialize in wetland plants. As a native species, it’s also part of the complex web of relationships that support local wildlife.

Should You Plant Seaside Brookweed?

If you have consistently wet areas in your landscape and want to plant something native and low-maintenance, seaside brookweed deserves serious consideration. It’s not going to be the star of your garden, but it’s the kind of reliable supporting player that makes everything else possible.

This plant is particularly valuable for gardeners committed to using native species and supporting local ecosystems. Plus, there’s something satisfying about successfully growing a plant in a challenging spot where others have failed.

Just remember: this isn’t the plant for your well-drained perennial border. Seaside brookweed has one non-negotiable requirement – it needs wet feet. Give it that, and you’ll have a faithful garden companion for years to come.

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

Arid West

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Atlantic and Gulf Coastal Plain

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Caribbean

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Eastern Mountains and Piedmont

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Great Plains

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Midwest

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Northcentral & Northeast

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Western Mountains, Valleys, and Coast

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Seaside Brookweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Primulales

Family

Primulaceae Batsch - Primrose family

Genus

Samolus L. - brookweed

Species

Samolus valerandi L. - seaside brookweed

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