North America Non-native Plant

Sorrel

Botanical name: Oxalis macrocarpa

USDA symbol: OXMA7

Native status: Not native but doesn't reproduce and persist in the wild

Discovering the Charm of Large-Fruited Wood Sorrel for Your Native Garden If you’re looking to add a delicate touch of native charm to your garden, Oxalis macrocarpa might just be the perfect little gem you’ve been searching for. This understated native plant, commonly known as sorrel, brings a quiet elegance ...

Discovering the Charm of Large-Fruited Wood Sorrel for Your Native Garden

If you’re looking to add a delicate touch of native charm to your garden, Oxalis macrocarpa might just be the perfect little gem you’ve been searching for. This understated native plant, commonly known as sorrel, brings a quiet elegance that’s often overlooked in the world of showier garden favorites.

What Makes This Native Sorrel Special?

Oxalis macrocarpa is a true native of the American landscape, naturally occurring across the central and western United States, particularly throughout the Great Plains region. This hardy little plant has been quietly beautifying prairies and grasslands long before gardeners discovered its potential for cultivated spaces.

Don’t let its modest appearance fool you – this sorrel packs plenty of personality into its small stature. The plant features the characteristic three-leaflet structure that makes it instantly recognizable, with heart-shaped leaflets that create an almost shamrock-like appearance. Come flowering time, it produces cheerful yellow blooms that add bright spots of color to your garden.

Where Does This Little Beauty Shine?

Large-fruited wood sorrel truly comes into its own in specific garden settings:

  • Prairie and native plant gardens where it can mingle with other indigenous species
  • Rock gardens where its delicate form provides soft contrast to harder landscape elements
  • Xeriscapes and drought-tolerant gardens
  • Wildflower meadows where it can naturalize freely
  • Ground cover applications in areas that need low-maintenance coverage

Growing Conditions That Make It Happy

One of the best things about Oxalis macrocarpa is its easygoing nature. This adaptable native thrives in USDA hardiness zones 4 through 8, making it suitable for a wide range of climates across the country.

For optimal growth, provide:

  • Full sun to partial shade (though it performs best with plenty of sunlight)
  • Well-draining soils – it’s not picky about soil type but won’t tolerate waterlogged conditions
  • Minimal supplemental watering once established, thanks to its natural drought tolerance

The Wildlife Connection

Beyond its aesthetic appeal, this native sorrel plays an important role in supporting local ecosystems. The bright yellow flowers attract various small native bees and other beneficial pollinators, contributing to the health of your garden’s ecosystem. By choosing native plants like Oxalis macrocarpa, you’re creating habitat that local wildlife has evolved alongside for thousands of years.

Planting and Care Made Simple

The beauty of growing native plants lies in their inherent adaptability, and large-fruited wood sorrel is no exception. Here’s how to set yourself up for success:

Getting Started: Plant in spring or early fall when temperatures are moderate. Space plants according to your desired coverage – they’ll naturally spread via underground stems over time.

Ongoing Care: Once established, this low-maintenance native requires minimal intervention. It may go dormant during periods of extreme heat, which is completely normal – don’t panic if it seems to disappear temporarily during the hottest part of summer.

Growth Expectations: Expect a relatively modest growth rate, which makes it perfect for gardeners who prefer plants that won’t overwhelm their space or require constant management.

Is This the Right Plant for Your Garden?

Large-fruited wood sorrel is an excellent choice for gardeners who appreciate subtle beauty and want to support native ecosystems. It’s particularly well-suited for those creating prairie gardens, native plant landscapes, or anyone looking for low-maintenance ground cover options.

However, if you’re seeking dramatic focal points or plants with extended blooming periods, you might want to consider this sorrel as part of a diverse native plant community rather than a standalone feature.

The bottom line? Oxalis macrocarpa offers gardeners a chance to grow something truly connected to the American landscape while providing genuine ecological benefits. It’s a small plant that plays a big role in creating authentic, sustainable garden spaces that both you and local wildlife will appreciate.

Sorrel

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

Geraniales

Family

Oxalidaceae R. Br. - Wood-Sorrel family

Genus

Oxalis L. - woodsorrel

Species

Oxalis macrocarpa (Small) R. Knuth - sorrel

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