North America Native Plant

Poorjoe

Botanical name: Diodia teres

USDA symbol: DITE2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Poorjoe: A Humble Native Ground Cover That Packs a Wildlife Punch Meet poorjoe (Diodia teres), a native plant that might not win any beauty contests but certainly deserves a spot in your wildlife-friendly garden. This unassuming little forb has been quietly supporting American ecosystems from coast to coast, and it’s ...

Poorjoe: A Humble Native Ground Cover That Packs a Wildlife Punch

Meet poorjoe (Diodia teres), a native plant that might not win any beauty contests but certainly deserves a spot in your wildlife-friendly garden. This unassuming little forb has been quietly supporting American ecosystems from coast to coast, and it’s time we gave it the recognition it deserves.

What Is Poorjoe?

Poorjoe is a native annual or perennial herbaceous plant that forms low-growing mats across the landscape. Don’t let its humble common name fool you – this hardy little survivor has been thriving in American soils long before European settlers arrived. As a forb, it lacks woody tissue but makes up for it with remarkable adaptability and persistence.

Where Does Poorjoe Grow?

This widespread native calls an impressive 34 states home, stretching from the Atlantic Coast to the Desert Southwest. You’ll find poorjoe growing naturally in Alabama, Arizona, Arkansas, California, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Mississippi, Missouri, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Virginia, West Virginia, and Wisconsin.

Why Your Garden (and Local Wildlife) Will Love Poorjoe

Here’s where poorjoe really shines – it’s a wildlife superstar! This modest plant provides:

  • 5-10% of the diet for large animals like deer
  • 2-5% of the diet for terrestrial birds
  • Nectar for small pollinators including tiny bees and flies
  • Ground-level habitat and foraging opportunities

While it might not provide significant cover for wildlife, poorjoe’s real value lies in its role as a reliable food source throughout the growing season.

Growing Poorjoe: What You Need to Know

One of poorjoe’s greatest selling points is its easy-going nature. This plant thrives in USDA hardiness zones 4-10, making it suitable for most of the continental United States.

Ideal Growing Conditions

  • Sunlight: Full sun to partial shade
  • Soil: Well-drained soils, tolerates poor conditions
  • Water: Drought tolerant once established
  • Maintenance: Extremely low – this plant practically grows itself

Understanding Poorjoe’s Moisture Preferences

Poorjoe’s wetland status varies by region, but it generally prefers upland conditions. In most areas, it’s classified as Facultative Upland, meaning it usually grows in non-wetland areas but can tolerate occasional wet conditions. Only in the Eastern Mountains and Piedmont region is it considered Obligate Upland, where it almost never occurs in wetlands.

Planting and Care Tips

Growing poorjoe is refreshingly simple:

  • Sow seeds directly in spring or fall
  • Barely cover seeds with soil – they need light to germinate
  • Water gently until established
  • Step back and let nature take its course

Fair warning: poorjoe is an enthusiastic self-seeder. While this makes it incredibly easy to establish, it can spread more aggressively than some gardeners prefer. Consider this trait carefully when choosing where to plant it.

Where Poorjoe Fits in Your Landscape

Poorjoe works beautifully in:

  • Native plant gardens
  • Naturalized meadow areas
  • Wildlife habitat gardens
  • Low-maintenance ground cover situations
  • Prairie restoration projects

Its small white flowers and linear leaves create a fine-textured backdrop for showier native plants, while its low growth habit makes it an excellent living mulch.

The Bottom Line on Poorjoe

Poorjoe might not be the flashiest plant in your garden, but it’s certainly one of the hardest working. If you’re looking to support local wildlife with minimal effort, this native ground cover delivers impressive results. Just be prepared for its enthusiastic spreading habit – in the right spot, this can be a blessing, but in a formal garden, it might require some management.

For gardeners committed to supporting native ecosystems while maintaining a low-maintenance landscape, poorjoe represents an excellent choice. Sometimes the most valuable plants are the ones that work quietly behind the scenes, and poorjoe is definitely one of those unsung heroes of the native plant world.

Wildlife Status

Want to attract wildlife or keep hungry critters away from your garden? Understanding the relationship between plants and wildlife is key. While plant tags may indicate deer and rabbit resistance, they don't tell the full story. Every gardener has experienced the disappointment of purchasing "deer-resistant" plants only to find them nibbled to the ground!

The extent to which plants are resistant to animal browsing is a matter of degree. Likewise, the extent to which a plant attracts wanted visitors also varies. Whether you want a garden full or free of wildlife, learning about interactions between a plant and wild animals can help you make smarter choices for the garden you desire.

As shown below Shrubby Indian Mallow isn't a large food source for animals or birds. You can confidently add this plant to your garden and rest assured knowing it's unlikely to be devoured by four-legged visitors.

Small animals

not a food source

not a source of cover

Large animals

5-10% of diet

Infrequently used as cover

Terrestrial birds

2-5% of diet

Sparsely used as cover

Water birds

not a food source

not a source of cover

Sources:

Miller, J.H., and K.V. Miller. 1999. Forest plants of the southeast and their wildlife uses. Southern Weed Science Society.Martin, A.C., H.S. Zim, and A.L. Nelson. 1951. American wildlife and plants: A guide to wildlife food habits. Dover Publications. New York.Everitt, J.H., D.L. Drawe, and R.I. Lonard. 1999. Field guide to the broad leaved herbaceous plants of South Texas used by livestock and wildlife. Texas Tech University Press. Lubbock.

Poorjoe

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Rubiales

Family

Rubiaceae Juss. - Madder family

Genus

Diodia L. - buttonweed

Species

Diodia teres Walter - poorjoe

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