North America Native Plant

Darlington’s Glade Spurge

Botanical name: Euphorbia purpurea

USDA symbol: EUPU4

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Euphorbia darlingtonii A. Gray (EUDA2)  âš˜  Galarhoeus darlingtonii (A. Gray) Small (GADA)  âš˜  Tithymalus darlingtonii (A. Gray) Small (TIDA)   

Darlington’s Glade Spurge: A Rare Native Worth Protecting in Your Garden Meet Darlington’s glade spurge (Euphorbia purpurea), a quietly beautiful native perennial that’s become something of a botanical treasure. This unassuming member of the spurge family might not win any flashy flower contests, but it’s got character—and more importantly, it ...

Rare plant alert!

Region: New Jersey

Status: S3: 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 ⚘ New Jersey Highlands region ⚘ New Jersey Pinelands region ⚘ Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: New Jersey

Darlington’s Glade Spurge: A Rare Native Worth Protecting in Your Garden

Meet Darlington’s glade spurge (Euphorbia purpurea), a quietly beautiful native perennial that’s become something of a botanical treasure. This unassuming member of the spurge family might not win any flashy flower contests, but it’s got character—and more importantly, it needs our help.

What Makes This Plant Special?

Darlington’s glade spurge is a native forb that calls the eastern United States home. As a perennial herb without woody stems, it dies back each winter and returns faithfully each spring. Don’t let its modest appearance fool you—this plant has quietly adapted to some pretty specific growing conditions over thousands of years.

You might also see this plant listed under its former scientific names, including Euphorbia darlingtonii, but Euphorbia purpurea is the name that stuck.

Where Does It Grow Naturally?

This native beauty has a somewhat limited range, naturally occurring in Delaware, Maryland, New Jersey, North Carolina, Ohio, Pennsylvania, Virginia, and West Virginia. It’s not the kind of plant you’ll stumble across in every woodland—which brings us to an important point.

A Word of Caution: This Plant Needs Protection

Here’s where things get serious. Darlington’s glade spurge has a Global Conservation Status of S3, meaning it’s considered vulnerable throughout its range. In New Jersey, it’s actually listed as endangered. This isn’t a plant to dig up from the wild or buy from questionable sources.

If you’re interested in growing this species, make sure you’re getting your plants or seeds from reputable native plant nurseries that propagate their own stock. Never collect from wild populations—every plant counts when a species is this rare.

Garden Appeal and Growing Conditions

Darlington’s glade spurge won’t give you masses of colorful blooms, but it offers subtle charm with its greenish flowers and often purplish-tinged stems. It’s the kind of plant that rewards close observation and appeals to gardeners who appreciate understated beauty.

This species is quite particular about its growing conditions. It’s classified as a facultative wetland plant in most of its range, meaning it usually prefers moist to wet conditions but can tolerate some variation. Think of it as a plant that likes to keep its feet damp most of the time.

Ideal Growing Conditions:

  • Moist to wet, well-draining soil
  • Partial shade to full sun
  • USDA Hardiness Zones 5-8
  • Areas that mimic natural glade or wetland edge conditions

Perfect Gardens for This Native

Darlington’s glade spurge isn’t for every garden, and that’s okay. It’s perfect for:

  • Native plant enthusiasts building authentic regional landscapes
  • Rain gardens and bioswales
  • Wetland restoration projects
  • Conservation-minded gardeners
  • Naturalistic garden designs

Caring for Your Darlington’s Glade Spurge

Once established with responsibly sourced plants, this perennial is relatively low-maintenance. Keep the soil consistently moist, especially during dry spells. It may self-seed in ideal conditions, which is wonderful for building sustainable populations.

The small flowers provide nectar for native bees and other small pollinators, making it a valuable addition to pollinator-supporting gardens despite its modest blooms.

The Bottom Line

Should you plant Darlington’s glade spurge? If you have the right growing conditions, a commitment to responsible sourcing, and an appreciation for rare native plants, absolutely. This species represents an opportunity to participate in plant conservation right in your own backyard.

Just remember: only source this plant from reputable native plant nurseries that propagate their own stock. By choosing to grow rare natives responsibly, you’re not just adding an interesting plant to your garden—you’re helping ensure that future generations will still be able to enjoy this unique piece of our natural heritage.

Darlington’s Glade Spurge

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

Euphorbiales

Family

Euphorbiaceae Juss. - Spurge family

Genus

Euphorbia L. - spurge

Species

Euphorbia purpurea (Raf.) Fernald - Darlington's glade spurge

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