North America Native Plant

Heartleaf Saxifrage

Botanical name: Saxifraga nelsoniana carlottae

USDA symbol: SANEC

Life cycle: perennial

Habit: forb

Native status: Native to Alaska âš˜ Native to Canada  

Synonyms: Saxifraga punctata L. ssp. carlottae Calder & Savile (SAPUC2)  âš˜  Saxifraga punctata L. var. carlottae (Calder & Savile) B. Boivin (SAPUC5)   

Heartleaf Saxifrage: A Rare Gem from the Pacific Northwest Meet the heartleaf saxifrage (Saxifraga nelsoniana carlottae), a charming little perennial that’s as elusive as it is beautiful. This diminutive wildflower represents one of nature’s more exclusive offerings – a plant so specialized that it calls only the most pristine corners ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Heartleaf Saxifrage: A Rare Gem from the Pacific Northwest

Meet the heartleaf saxifrage (Saxifraga nelsoniana carlottae), a charming little perennial that’s as elusive as it is beautiful. This diminutive wildflower represents one of nature’s more exclusive offerings – a plant so specialized that it calls only the most pristine corners of the Pacific Northwest home.

What Makes This Plant Special?

The heartleaf saxifrage is what botanists call a forb – essentially a non-woody perennial herb that dies back to the ground each winter and returns faithfully each spring. Don’t let the technical term fool you; this is simply nature’s way of describing a tough little survivor that knows how to weather the storms.

You might occasionally see this plant listed under its synonyms Saxifraga punctata ssp. carlottae or Saxifraga punctata var. carlottae, but they’re all referring to the same remarkable little plant.

Where Does It Call Home?

This saxifrage is a true native of the far north, naturally occurring in Alaska and British Columbia. Its distribution is quite limited, making it a genuine botanical treasure for those lucky enough to encounter it in the wild.

The Rarity Factor: Why This Matters

Here’s where things get interesting – and important. The heartleaf saxifrage carries a Global Conservation Status of S5T3, which indicates this subspecies has some level of conservation concern. While not critically endangered, this plant isn’t exactly common, and that’s something every gardener should keep in mind.

If you’re considering adding this beauty to your garden, the golden rule is simple: source responsibly. Never collect plants from the wild, and only purchase from reputable nurseries that can verify their plants were ethically propagated, not wild-collected.

Garden Potential and Considerations

While specific growing requirements for this particular subspecies aren’t well-documented, saxifrages as a group are known for their preference for cool, moist conditions and often thrive in rock gardens or alpine settings. Given its northern native range, the heartleaf saxifrage likely appreciates:

  • Cool, temperate climates
  • Well-draining soil
  • Protection from intense summer heat
  • Consistent moisture without waterlogging

The Reality Check

Let’s be honest: finding heartleaf saxifrage for your garden might be like searching for a needle in a haystack. Its rarity means it’s rarely available through commercial channels, and that’s probably for the best. This plant is better appreciated in its natural habitat or in specialized botanical collections.

Native Alternatives to Consider

If you’re drawn to the charm of saxifrages but want something more readily available and garden-friendly, consider looking into other native plants from your region that offer similar appeal. Many areas have their own native wildflowers that provide the same delicate beauty without the conservation concerns.

The Bottom Line

The heartleaf saxifrage is one of those plants that reminds us why conservation matters. It’s a living piece of the Pacific Northwest’s natural heritage, and while it might not be destined for every garden, it deserves our respect and protection. Sometimes the best way to appreciate a rare plant is to support habitat conservation and admire it where it belongs – in the wild.

If you do happen upon this species through legitimate channels, treat it as the treasure it is. Provide it with the cool, moist conditions it craves, and remember that you’re caring for something truly special.

Heartleaf 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

Rosales

Family

Saxifragaceae Juss. - Saxifrage family

Genus

Saxifraga L. - saxifrage

Species

Saxifraga nelsoniana D. Don - heartleaf saxifrage

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