North America Non-native Plant

Lamarck’s Bedstraw

Botanical name: Galium divaricatum

USDA symbol: GADI

Life cycle: annual

Habit: forb

Native status: Non-native, reproduces and persists in the wild in Hawaii âš˜ Non-native, reproduces and persists in the wild in the lower 48 states  

Synonyms: Galium anglicum Huds. (GAAN7)  âš˜  Galium anglicum Huds. var. parvifolium (Gaudich. ex Roem. & Schult.) DC. (GAANP)  âš˜  Galium parvifolium Gaudich. ex Roem. & Schult. (GAPA9)  âš˜  Galium parisiense L. ssp. anglicum (Huds.) Gaudich. (GAPAA)  âš˜  Galium parisiense L. var. anglicum (Huds.) G. Beck (GAPAA2)  âš˜  Galium parisiense L. var. divaricatum (Pourr. ex Lam.) Vis. (GAPAD)  âš˜  Galium parisiense L. var. leiocarpum Tausch (GAPAL2)  âš˜  Galium parisiense L. ssp. parvifolium (Gaudich. ex Roem. & Schult.) Gaudich. (GAPAP)   

Lamarck’s Bedstraw: A Delicate Annual with a Spreading Habit If you’ve ever encountered a delicate, sprawling plant with tiny white flowers scattered throughout your garden, you might have met Lamarck’s bedstraw (Galium divaricatum). This unassuming annual has quietly made itself at home across much of the United States, though it’s ...

Lamarck’s Bedstraw: A Delicate Annual with a Spreading Habit

If you’ve ever encountered a delicate, sprawling plant with tiny white flowers scattered throughout your garden, you might have met Lamarck’s bedstraw (Galium divaricatum). This unassuming annual has quietly made itself at home across much of the United States, though it’s not originally from here. Let’s dive into what makes this little plant tick and whether it deserves a spot in your garden plans.

What Exactly is Lamarck’s Bedstraw?

Lamarck’s bedstraw is a small annual forb – essentially a non-woody flowering plant that completes its entire life cycle in one growing season. Originally hailing from the Mediterranean region and parts of Europe, this plant has established itself across a surprisingly wide range of American states. You might also see it listed under various scientific synonyms, including Galium anglicum or Galium parvifolium, which can make identification a bit tricky for plant enthusiasts.

Where You’ll Find It Growing

This adaptable little plant has spread across an impressive range of states, from the sunny shores of Hawaii to the mountains of Vermont. You can currently find Lamarck’s bedstraw growing in Alabama, Arkansas, California, Georgia, Hawaii, Indiana, Kentucky, Louisiana, Mississippi, Missouri, North Carolina, Oregon, Tennessee, Vermont, Virginia, and West Virginia. It’s quite the traveler!

The Not-So-Native Truth

Here’s where things get a bit complicated. Lamarck’s bedstraw isn’t native to North America – it’s what botanists call a naturalized species. This means it was introduced from elsewhere but has successfully established self-sustaining populations without human help. The good news? It’s not currently listed as invasive or noxious, so it’s not considered a major ecological threat.

What Does It Look Like?

Lamarck’s bedstraw won’t win any awards for showiness, but it has its own quiet charm. The plant produces clusters of tiny white flowers that seem to float above delicate, branching stems. Its fine-textured foliage creates an airy, almost ethereal appearance in the garden. Don’t expect dramatic height – this is a low-growing plant that tends to spread rather than reach skyward.

Garden Role and Landscape Use

If you’re looking for a formal, manicured garden specimen, Lamarck’s bedstraw probably isn’t your plant. However, it can play a useful role in more naturalized settings:

  • Ground cover in informal areas
  • Gap-filler in wild or meadow gardens
  • Addition to Mediterranean-style landscapes
  • Component of naturalized plantings

Growing Conditions and Care

One of Lamarck’s bedstraw’s strongest qualities is its adaptability. This plant is remarkably unfussy about growing conditions and can thrive in USDA hardiness zones 6-10. It prefers well-drained soils and can handle drought conditions once established, making it a good choice for low-water gardens.

The plant’s wetland status varies by region, but generally falls into the facultative category, meaning it can grow in both wet and dry conditions. In western regions, it leans more toward upland (drier) sites.

The Pollinator Connection

While Lamarck’s bedstraw may not be a pollinator powerhouse, its small white flowers do attract various small insects. The tiny blooms provide nectar and pollen resources, particularly for smaller beneficial insects that might be overlooked by showier flowers.

Planting and Maintenance Tips

If you decide to work with Lamarck’s bedstraw, here’s what you need to know:

  • Seeds readily self-sow, so expect it to spread
  • Requires minimal care once established
  • Thrives in poor to average soils
  • Benefits from occasional weeding around young plants
  • May need management to prevent excessive spread

Should You Plant It?

This is where personal preference and garden philosophy come into play. Lamarck’s bedstraw isn’t going to harm your local ecosystem, but it’s also not providing the same benefits as native alternatives. If you’re focused on supporting local wildlife and ecosystems, you might consider native bedstraws or other indigenous ground covers instead.

However, if you have a challenging spot where few other plants thrive, or if you’re creating a Mediterranean-themed garden, Lamarck’s bedstraw could earn its keep. Just be prepared for its self-seeding habits and keep an eye on its spread.

Native Alternatives to Consider

If you like the idea of bedstraw but want to go native, look into indigenous Galium species in your area. Many regions have native bedstraws that offer similar aesthetic qualities while providing better support for local wildlife. Your local native plant society or extension office can help you identify the best options for your specific location.

Lamarck’s bedstraw represents one of those garden gray areas – not harmful, not spectacular, but potentially useful in the right situation. Whether it finds a place in your garden depends on your priorities and growing conditions. Just remember that in the plant world, sometimes the quiet, unassuming species can surprise you with their resilience and subtle beauty.

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

FACU

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

Atlantic and Gulf Coastal Plain

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Eastern Mountains and Piedmont

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Great Plains

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Hawaii

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Midwest

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Northcentral & Northeast

FACU

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

Western Mountains, Valleys, and Coast

FACU

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

Lamarck’s Bedstraw

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

Rubiales

Family

Rubiaceae Juss. - Madder family

Genus

Galium L. - bedstraw

Species

Galium divaricatum Pourr. ex Lam. - Lamarck's bedstraw

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