North America Non-native Plant

Solidstem Burnet Saxifrage

Botanical name: Pimpinella saxifraga

USDA symbol: PISA

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  

Solidstem Burnet Saxifrage: A Delicate European Import Worth Knowing If you’ve ever stumbled across a patch of delicate white flowers dancing in the breeze, you might have encountered solidstem burnet saxifrage (Pimpinella saxifraga). This charming European native has quietly made itself at home across much of North America, bringing both ...

Solidstem Burnet Saxifrage: A Delicate European Import Worth Knowing

If you’ve ever stumbled across a patch of delicate white flowers dancing in the breeze, you might have encountered solidstem burnet saxifrage (Pimpinella saxifraga). This charming European native has quietly made itself at home across much of North America, bringing both beauty and a bit of botanical controversy to our landscapes.

What Exactly Is Solidstem Burnet Saxifrage?

Don’t let the fancy name intimidate you – solidstem burnet saxifrage is simply a perennial forb that’s been winning over North American gardeners for generations. As a forb, it’s essentially an herbaceous plant without woody stems, meaning it dies back to the ground each winter and returns fresh each spring.

This petite performer typically reaches just 1-2 feet in height, producing clusters of tiny white flowers arranged in delicate umbrella-like formations called umbels. The foliage is equally charming, with finely divided, almost fern-like leaves that add texture to any garden setting.

Where Does It Call Home?

Originally hailing from Europe and western Asia, this adaptable plant has established itself across an impressive range in North America. You’ll find it growing in New Brunswick, Nova Scotia, Ontario, Quebec, and Newfoundland in Canada, plus numerous U.S. states including Connecticut, Delaware, Indiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Montana, New Jersey, New York, Ohio, Pennsylvania, Tennessee, Vermont, Virginia, Washington, West Virginia, and Wisconsin.

The Invasive Elephant in the Room

Here’s where things get a bit complicated. While solidstem burnet saxifrage isn’t aggressive everywhere it grows, Wisconsin has classified it as Restricted, meaning there are concerns about its potential to spread beyond where it’s wanted. This is something every responsible gardener should consider before planting.

The plant’s ability to self-seed readily – while wonderful for low-maintenance gardening – can sometimes lead to it popping up where you didn’t invite it. It’s not a garden thug, but it’s definitely got a wandering spirit.

Growing Conditions and Care

If you’re in an area where it’s not restricted and you decide to give it a try, you’ll find solidstem burnet saxifrage refreshingly easy to please. Here’s what it loves:

  • Sunlight: Full sun to partial shade
  • Soil: Well-drained soils of various types
  • Water: Drought tolerant once established
  • Climate: Hardy in USDA zones 3-8
  • Maintenance: Minimal – this is a plant-it-and-forget-it kind of species

According to wetland indicators, this plant strongly prefers upland conditions in most regions, though it shows some flexibility in the Eastern Mountains, Piedmont, and Northcentral/Northeast regions where it occasionally tolerates wetter conditions.

Garden Roles and Design Ideas

When used thoughtfully, solidstem burnet saxifrage can play several roles in your landscape:

  • Cottage gardens: Its delicate flowers fit perfectly with the informal, romantic style
  • Naturalized areas: Great for meadow-like plantings where you want a wild look
  • Herb gardens: Historically used medicinally (though we recommend sticking to culinary herbs!)
  • Ground cover: In appropriate settings, it can help fill space naturally

Wildlife and Pollinator Benefits

The small white flowers are particularly attractive to beneficial insects, including bees and flies. The umbrella-shaped flower clusters provide easy landing platforms for smaller pollinators who might struggle with larger blooms.

Should You Plant It? The Verdict

This is where we put on our responsible gardener hats. While solidstem burnet saxifrage has its charms, its non-native status and restricted classification in some areas give us pause. If you’re drawn to its delicate beauty, consider these native alternatives that offer similar aesthetic appeal without the ecological concerns:

  • Wild bergamot (Monarda fistulosa) for cottage garden charm
  • White wild indigo (Amorpha alba) for naturalized areas
  • Canada anemone (Anemone canadensis) for ground cover needs

If you already have solidstem burnet saxifrage in your garden, there’s no need to panic – just keep an eye on it and prevent it from spreading to natural areas. And remember, the best garden is one that supports local ecosystems while bringing you joy.

Happy gardening, and remember – when in doubt, go native!

Solidstem Burnet Saxifrage

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Apiales

Family

Apiaceae Lindl. - Carrot family

Genus

Pimpinella L. - burnet saxifrage

Species

Pimpinella saxifraga L. - solidstem burnet saxifrage

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