North America Native Plant

New York Dewberry

Botanical name: Rubus obsessus

USDA symbol: RUOB2

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

New York Dewberry: A Rare Native Gem for Northeast Gardens Meet the New York dewberry (Rubus obsessus), a charming native shrub that’s as elusive as it is appealing. This little-known member of the raspberry family represents one of nature’s more exclusive offerings for gardeners in the Northeast, and there’s something ...

Rare plant alert!

Region: Conservation status by state

Status: S3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

New York Dewberry: A Rare Native Gem for Northeast Gardens

Meet the New York dewberry (Rubus obsessus), a charming native shrub that’s as elusive as it is appealing. This little-known member of the raspberry family represents one of nature’s more exclusive offerings for gardeners in the Northeast, and there’s something quite special about cultivating a plant that few others even know exists.

What Makes New York Dewberry Special?

New York dewberry is a perennial shrub that keeps things modest in the garden. This low-growing beauty typically stays under 1.5 feet tall and never exceeds 3 feet at maturity, making it perfect for gardeners who appreciate plants with good manners. Unlike its more aggressive raspberry cousins, this dewberry knows how to stay in its lane.

As a true native of the lower 48 states, this species has been quietly calling Connecticut and New York home for centuries. It’s perfectly adapted to the regional climate and ecosystem, which means it plays well with local wildlife and other native plants.

The Rarity Factor: Handle with Care

Here’s where things get interesting (and a bit serious). New York dewberry carries a Global Conservation Status of S3?, which essentially means its population status is somewhat of a mystery—and that’s never a good sign in the plant world. This rarity makes it both a treasure and a responsibility for gardeners.

If you’re considering adding this species to your garden, it’s absolutely crucial that you source it responsibly. Never collect from wild populations, and always purchase from reputable native plant nurseries that can verify their propagation methods. Think of yourself as a conservation steward rather than just a gardener.

Garden Role and Design Potential

With its compact, shrubby growth habit, New York dewberry can serve several roles in the landscape:

  • Groundcover for naturalized areas
  • Understory planting in woodland gardens
  • Native plant collections and botanical gardens
  • Erosion control on slopes (where appropriate)

Its manageable size makes it suitable for smaller residential landscapes where you want native character without overwhelming other plants.

Growing New York Dewberry

While specific growing requirements for Rubus obsessus aren’t well-documented (which speaks to its rarity), we can make educated assumptions based on its native habitat and close relatives in the Rubus family. Like most native plants, it likely prefers conditions similar to its natural environment in Connecticut and New York.

As a responsible gardener interested in this species, you’ll want to:

  • Research its specific habitat requirements in your local area
  • Consult with native plant societies or botanical gardens in Connecticut or New York
  • Connect with local naturalists who might have field experience with this species
  • Consider participating in citizen science projects that could help document this plant’s needs

The Conservation Gardener’s Choice

Should you plant New York dewberry? If you’re in its native range and can source it responsibly, absolutely. This is exactly the kind of plant that benefits from having more people grow it, study it, and help ensure its survival. You’d be participating in a form of conservation that happens right in your backyard.

However, if you can’t find responsibly sourced plants, consider supporting this species in other ways—perhaps by contributing to botanical gardens that maintain collections, or by supporting research into rare native plants.

New York dewberry might not be the flashiest addition to your garden, but it offers something that’s becoming increasingly rare itself: the opportunity to grow a piece of authentic local natural history. In a world of common garden plants, there’s something quietly revolutionary about choosing the path less traveled—or in this case, the plant less grown.

New York 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 obsessus L.H. Bailey - New York dewberry

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