North America Native Plant

Poorjoe

Botanical name: Diodia teres var. hystricina

USDA symbol: DITEH

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Discovering Poorjoe: A Small Native Gem for Mid-Atlantic Gardens If you’re looking to add authentic regional character to your Mid-Atlantic garden, meet poorjoe (Diodia teres var. hystricina) – a charming native forb that’s been quietly thriving in the southeastern United States long before European settlers arrived. While this little plant ...

Discovering Poorjoe: A Small Native Gem for Mid-Atlantic Gardens

If you’re looking to add authentic regional character to your Mid-Atlantic garden, meet poorjoe (Diodia teres var. hystricina) – a charming native forb that’s been quietly thriving in the southeastern United States long before European settlers arrived. While this little plant might not win any height contests, it brings genuine native authenticity to gardens from Maryland down to North Carolina.

What Makes Poorjoe Special?

Poorjoe belongs to the madder family (Rubiaceae), making it a distant cousin to coffee plants and gardenias. As a native forb, this herbaceous plant lacks the woody stems of shrubs and trees, instead producing soft, green growth that dies back seasonally. What makes this variety particularly interesting is its classification as both annual and perennial – meaning it can complete its life cycle in one year but may also persist for multiple growing seasons under the right conditions.

Where Poorjoe Calls Home

This native variety has a relatively limited natural range, making it a true regional specialty. You’ll find poorjoe growing naturally in Maryland, North Carolina, and Virginia – a testament to its adaptation to Mid-Atlantic growing conditions and climate patterns.

Should You Plant Poorjoe in Your Garden?

Here’s the honest truth: poorjoe isn’t going to be the showstopper of your garden border. But that doesn’t mean it lacks value! This native plant offers several compelling reasons to consider it:

  • True regional native: Supporting plants that evolved in your specific area helps maintain local ecosystem connections
  • Low-maintenance character: As a native adapted to local conditions, it typically requires less intervention than exotic alternatives
  • Authentic naturalization: Perfect for native plant gardens, restoration projects, or naturalized areas
  • Educational value: Great for demonstrating regional plant diversity to visitors

Growing Poorjoe Successfully

Unfortunately, specific growing information for this particular variety is limited in readily available sources. However, based on its native range and plant family characteristics, we can make some educated assumptions about its preferences:

Likely Growing Conditions

  • Climate zones: Probably hardy in USDA zones 6-8, matching its Mid-Atlantic native range
  • Soil preferences: Likely adaptable to various soil types, as most regional natives are
  • Light requirements: Probably tolerates both sun and partial shade
  • Water needs: Likely drought-tolerant once established, typical of native forbs

Planting and Care Tips

  • Source seeds or plants from reputable native plant suppliers
  • Plant in spring after last frost date
  • Water regularly during establishment, then reduce frequency
  • Allow natural reseeding if you want it to spread
  • Minimal fertilization needed – natives prefer lean conditions

The Bottom Line

Poorjoe might not be the flashiest addition to your garden, but it offers something increasingly valuable: genuine local heritage. If you’re creating a native plant garden, participating in habitat restoration, or simply want to grow plants that belong in your specific region, this little forb deserves consideration.

Keep in mind that detailed growing information for this specific variety can be hard to find. Consider reaching out to your local native plant society, extension office, or regional botanists for more specific guidance about growing poorjoe in your particular location.

Sometimes the most rewarding plants are the quiet ones that connect us to the authentic natural character of our home landscapes. Poorjoe may be small, but it’s genuinely, authentically yours – if you live in the Mid-Atlantic, that is!

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