North America Native Plant

Oldfield Dewberry

Botanical name: Rubus mundus

USDA symbol: RUMU5

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Oldfield Dewberry: A Rare Native Gem Worth Discovering If you’re on the hunt for native plants that fly under the radar, let me introduce you to oldfield dewberry (Rubus mundus). This little-known native shrub might not be the flashiest plant in the garden center, but it’s got some seriously cool ...

Oldfield Dewberry: A Rare Native Gem Worth Discovering

If you’re on the hunt for native plants that fly under the radar, let me introduce you to oldfield dewberry (Rubus mundus). This little-known native shrub might not be the flashiest plant in the garden center, but it’s got some seriously cool credentials that make it worth a closer look.

What Exactly Is Oldfield Dewberry?

Oldfield dewberry is a perennial native shrub that keeps things low-key – literally. This compact beauty stays under 1.5 feet tall most of the time and never gets taller than 3 feet, making it perfect for those spots where you want ground-covering action without the drama of towering plants.

As a true native to the lower 48 states, this dewberry has been quietly doing its thing in the wild long before any of us started thinking about native gardening. You’ll find it naturally growing in Illinois, Indiana, Kentucky, and Missouri, where it’s adapted perfectly to local conditions.

The Challenge (And the Appeal) of Growing Oldfield Dewberry

Here’s where things get interesting – and a bit tricky. Oldfield dewberry is somewhat of a mystery plant in the gardening world. While we know it’s native and where it grows, detailed information about its specific growing requirements, care needs, and garden performance is surprisingly scarce.

This rarity in cultivation means you’re unlikely to find it at your local nursery, and growing it successfully might require some detective work on your part. But for native plant enthusiasts who love a challenge, that’s half the fun!

What We Do Know

Based on its native range and plant family characteristics, oldfield dewberry likely shares some traits with its better-known dewberry cousins:

  • Produces small white flowers in spring
  • May develop dark berries that wildlife (and possibly humans) can enjoy
  • Thrives in the climate conditions of the Midwest
  • Low-maintenance once established
  • Provides ground cover in natural settings

Is Oldfield Dewberry Right for Your Garden?

This plant might be perfect for you if:

  • You’re passionate about growing true natives
  • You love rare or unusual plants
  • You need low-growing shrubs for naturalized areas
  • You’re located in its native range (Illinois, Indiana, Kentucky, or Missouri)
  • You enjoy the challenge of growing less common species

However, you might want to consider alternatives if:

  • You prefer plants with well-documented growing guides
  • You want guaranteed availability from nurseries
  • You’re new to native gardening and want easier starter plants

The Bottom Line

Oldfield dewberry represents the fascinating world of lesser-known native plants. While we may not have all the answers about growing this particular species, that’s part of what makes native gardening such an adventure. If you can source this plant responsibly and you’re up for some gardening experimentation, oldfield dewberry could be a unique addition to your native plant collection.

Just remember – when dealing with rare or uncommon natives, always ensure you’re getting plants from reputable sources that practice responsible propagation. Your local native plant society or extension office might be your best bet for tracking down this elusive dewberry and getting region-specific growing advice.

Oldfield Dewberry

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

Rosales

Family

Rosaceae Juss. - Rose family

Genus

Rubus L. - blackberry

Species

Rubus mundus L.H. Bailey - oldfield dewberry

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