North America Non-native Plant

European Stoneseed

Botanical name: Lithospermum officinale

USDA symbol: LIOF

Life cycle: perennial

Habit: forb

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

European Stoneseed: A Hardy Perennial with Old-World Charm If you’re looking for a low-maintenance perennial that brings a touch of European countryside to your garden, European stoneseed (Lithospermum officinale) might catch your interest. This unassuming herbaceous plant has been quietly making itself at home in North American gardens and wild ...

European Stoneseed: A Hardy Perennial with Old-World Charm

If you’re looking for a low-maintenance perennial that brings a touch of European countryside to your garden, European stoneseed (Lithospermum officinale) might catch your interest. This unassuming herbaceous plant has been quietly making itself at home in North American gardens and wild spaces for generations.

What is European Stoneseed?

European stoneseed is a perennial forb that grows as a non-woody herbaceous plant, typically reaching 1-3 feet in height with a spreading growth habit. As its common name suggests, this plant hails from Europe and western Asia, though it has successfully established itself across much of northern North America.

True to its name, this plant produces small, hard, stone-like seeds that give it both its common name and its ability to persist in the landscape. The rough-textured leaves and small white flowers that appear in spring and early summer create a modest but charming display.

Where Does European Stoneseed Grow?

This adaptable plant has found a home across a wide swath of North America. You’ll find European stoneseed growing in Manitoba, New Brunswick, Ontario, Quebec, Connecticut, Illinois, Indiana, Maine, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Tennessee, Vermont, and Wisconsin.

Should You Plant European Stoneseed?

European stoneseed occupies an interesting middle ground in the gardening world. While it’s not native to North America, it’s also not typically classified as aggressively invasive. Here are some considerations:

Reasons You Might Want It:

  • Extremely low maintenance once established
  • Drought tolerant and adapts to poor soils
  • Provides ground cover in challenging areas
  • Attracts small pollinators with its modest white flowers
  • Self-seeds readily, filling in naturalized areas
  • Hardy in USDA zones 3-8

Reasons for Caution:

  • Can self-seed aggressively and spread beyond intended areas
  • May compete with native plants in wild spaces
  • Not particularly showy compared to native alternatives

Native Alternatives to Consider

If you’re drawn to European stoneseed’s hardy nature and small white flowers, consider these native alternatives that provide similar benefits while supporting local ecosystems:

  • Wild ginger for shaded ground cover
  • Wild strawberry for sunny areas with small white flowers
  • Creeping phlox for spring color and pollinator appeal
  • Native sedums for drought-tolerant ground cover

How to Grow European Stoneseed

If you decide European stoneseed fits your garden goals, you’ll find it refreshingly easy to grow:

Growing Conditions:

  • Light: Full sun to partial shade
  • Soil: Well-drained soil; tolerates poor, rocky, or sandy conditions
  • Water: Drought tolerant once established; avoid overwatering
  • Zones: USDA hardiness zones 3-8

Planting and Care Tips:

  • Plant in spring or fall when temperatures are moderate
  • Space plants 12-18 inches apart if planting multiples
  • Water regularly during the first growing season to establish roots
  • Cut back after flowering if you want to prevent excessive self-seeding
  • Divide clumps every 3-4 years if they become too large
  • Minimal fertilization needed; too much can make plants floppy

The Bottom Line

European stoneseed is a plant that asks for little and gives a steady, if modest, return. It’s perfect for gardeners who want reliable ground cover in challenging spots without much fuss. However, if supporting native ecosystems is a priority, you might find more satisfaction in native alternatives that provide similar benefits while better serving local wildlife.

Whether you choose European stoneseed or explore native options, the key is selecting plants that align with your garden goals and local growing conditions. Happy gardening!

European Stoneseed

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

Lamiales

Family

Boraginaceae Juss. - Borage family

Genus

Lithospermum L. - stoneseed

Species

Lithospermum officinale L. - European stoneseed

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