Native Plants

Curtis’ Spurge

Euphorbia curtisii

USDA symbol: EUCU3

perennial shrub

Lower 48 states: native

If you’re looking to add some authentic southeastern charm to your garden, let me introduce you to Curtis’ spurge (Euphorbia curtisii) – a delightful native shrub that’s been quietly thriving in the Southeast long before any of us started worrying about landscaping. This little-known perennial deserves a spot on your ...

Curtis’ Spurge: A Hidden Gem for Southeastern Native Gardens

If you’re looking to add some authentic southeastern charm to your garden, let me introduce you to Curtis’ spurge (Euphorbia curtisii) – a delightful native shrub that’s been quietly thriving in the Southeast long before any of us started worrying about landscaping. This little-known perennial deserves a spot on your radar if you’re passionate about native plants and supporting local ecosystems.

What Exactly is Curtis’ Spurge?

Curtis’ spurge is a perennial shrub that typically stays under 13-16 feet tall, making it perfect for most residential landscapes. Like other members of the euphorbia family, it produces the characteristic milky sap and has a multi-stemmed growth habit that creates an attractive, bushy appearance. You might also see it listed under its scientific synonyms Tithymalopsis curtisii or Tithymalopsis eriogonoides in older botanical references.

Where Does Curtis’ Spurge Call Home?

This charming native is truly a southeastern specialty, naturally occurring in Alabama, Florida, Georgia, North Carolina, and South Carolina. It’s perfectly adapted to the climate and growing conditions of these regions, from the Atlantic and Gulf Coastal Plains to the Eastern Mountains and Piedmont areas.

  • Species observed
  • No observations

Why Should You Consider Growing Curtis’ Spurge?

Here’s where things get exciting for native plant enthusiasts:

  • True Native Status: This isn’t just native-ish – it’s the real deal, evolved specifically for southeastern conditions
  • Low Maintenance: Once established, native plants like Curtis’ spurge typically require less water, fertilizer, and fussing than non-native alternatives
  • Ecosystem Support: Native plants provide the best support for local wildlife, including pollinators and beneficial insects
  • Climate Adapted: It already knows how to handle your local weather patterns, soil types, and seasonal changes

Growing Conditions and Care

Curtis’ spurge is remarkably adaptable, which explains its facultative wetland status – meaning it can thrive in both wetland and non-wetland conditions. This flexibility makes it an excellent choice for various garden situations.

USDA Hardiness Zones: Based on its native range, Curtis’ spurge should thrive in zones 8-10, making it perfect for most southeastern gardens.

Ideal Growing Conditions:

  • Well-draining soil (though it can handle some moisture variation)
  • Partial to full sun exposure
  • Minimal watering once established
  • Little to no fertilizer needed

Planting and Care Tips

Getting Curtis’ spurge established in your garden is refreshingly straightforward:

  • Planting: Spring or fall are ideal planting times in the Southeast
  • Spacing: Give it room to develop its natural multi-stemmed form
  • Watering: Water regularly the first season, then let nature take over
  • Safety Note: Like all euphorbias, Curtis’ spurge produces a milky sap that can be irritating to skin and eyes – wear gloves when handling

Garden Design Ideas

Curtis’ spurge works beautifully in:

  • Native plant gardens and naturalized areas
  • Mixed perennial borders
  • Coastal and drought-tolerant landscapes
  • Wildlife and pollinator gardens
  • Low-maintenance foundation plantings

The Bottom Line

Curtis’ spurge may not be the showiest plant in the garden center, but it offers something far more valuable – authentic regional character and ecological benefits that only come from true native species. If you’re gardening in the Southeast and want to create landscapes that truly belong to your area, Curtis’ spurge deserves serious consideration. It’s one of those quiet champions that asks for little but gives back plenty to both your garden and the local ecosystem.

Plus, there’s something deeply satisfying about growing a plant that your great-great-grandparents might have encountered in the wild – it’s like having a living piece of regional history right in your backyard.

Euphorbia curtisii is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Euphorbia curtisii is also known as:

Tithymalopsis curtisii | USDA symbol: TICU
Tithymalopsis eriogonoides | USDA symbol: TIER2

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

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 care and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection can be if you don't have the right information. While tags on nursery plants 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. You might be surprised to learn that popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. The table below gives insight into the preferred growing conditions of this plant throughout its geographical distribution.

Region
Preferred Habitat

Atlantic and Gulf Coastal Plain (AL, AR, DC, DE, FL, GA, IL, KY, LA, MD, MS, MO, NC, NJ, OK, PA, SC, TN, TX, VA)

Facultative

Eastern Mountains and Piedmont (AL, AR, DC, DE, GA, IL, IN, KS, KY, MD, MO, NC, NJ, NY, OH, OK, PA, SC, TN, VA, WV)

Facultative
Wetland Glossary
Obligate Wetland
Facultative Wetland
Facultative
Facultative Upland
Obligate Upland
Almost always occurs in wetlands
Usually occurs in wetlands but may occur in non-wetlands
Can occur in wetlands and non-wetlands
Usually occurs in non-wetlands but may occur in wetlands
Almost never occurs in wetlands

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Rosidae
Order: Euphorbiales
Family: Euphorbiaceae Juss. - Spurge family
Genus: Euphorbia L. - spurge

Species: Euphorbia curtisii Engelm. - Curtis' spurge

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