North America Native Plant

Cold Spring Blackberry

Botanical name: Rubus originalis

USDA symbol: RUOR4

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Cold Spring Blackberry: A Rare Native Gem Worth Protecting Meet the Cold Spring blackberry (Rubus originalis), one of nature’s best-kept secrets hiding in plain sight across a small slice of the eastern United States. This little-known native shrub might not be on every gardener’s wish list yet, but it deserves ...

Rare plant alert!

Region: New Jersey

Status: S3?: 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 Jersey Highlands region ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Region: New Jersey

Cold Spring Blackberry: A Rare Native Gem Worth Protecting

Meet the Cold Spring blackberry (Rubus originalis), one of nature’s best-kept secrets hiding in plain sight across a small slice of the eastern United States. This little-known native shrub might not be on every gardener’s wish list yet, but it deserves a spot in the conversation about rare and valuable native plants.

What Makes Cold Spring Blackberry Special?

The Cold Spring blackberry is a compact, perennial shrub that keeps things modest in the size department. Unlike its towering blackberry cousins that can take over entire fence lines, this petite member of the Rubus family typically stays under 1.5 feet tall, with even the most ambitious specimens maxing out at around 3 feet. It’s the kind of plant that knows how to stay in its lane – literally perfect for smaller gardens or naturalized areas where you want native character without the drama.

Where Does It Call Home?

This native beauty has chosen a pretty exclusive neighborhood for its natural range. You’ll find Cold Spring blackberry growing wild in just three states: Maryland, New Jersey, and West Virginia. It’s what you might call a regional endemic – a plant that’s perfectly adapted to the specific conditions of the Mid-Atlantic region.

The Rarity Factor: Handle with Care

Here’s where things get serious, folks. Cold Spring blackberry isn’t just uncommon – it’s genuinely rare. With a global conservation status of S3 (which somewhat mysteriously translates to undefined but generally indicates concern) and an S2 Highlands Listed status in New Jersey, this plant is flying under the radar for good reason. There simply aren’t many of them out there.

What does this mean for gardeners? If you’re lucky enough to encounter this species and want to include it in your landscape, you absolutely must source it responsibly. Never, ever collect plants from wild populations. Instead, work with reputable native plant nurseries that can provide ethically propagated specimens.

Growing Cold Spring Blackberry: The Basics

Since specific cultivation information for Rubus originalis is limited (that’s what happens with rare plants!), we can draw some educated conclusions based on its Rubus family traits and native habitat:

  • As a native of the Mid-Atlantic, it’s likely adapted to the region’s temperate climate
  • Most Rubus species appreciate well-draining soil with consistent moisture
  • Partial shade to full sun exposure typically works well for blackberry relatives
  • Being a low-growing shrub, it probably works well as understory planting or in woodland edges

Garden Design Potential

While we’re still learning about this species’ specific garden applications, its compact size makes it intriguing for several landscape scenarios. Think native plant gardens, wildlife corridors, or naturalized areas where you want authentic regional character. Its modest stature means it won’t overwhelm smaller spaces, making it potentially valuable for urban native plantings.

The Conservation Connection

By choosing to grow rare native plants like Cold Spring blackberry, you’re participating in something bigger than just gardening – you’re contributing to conservation. Every responsibly grown specimen in cultivation helps preserve the genetic diversity of this species and reduces pressure on wild populations.

Should You Grow It?

The Cold Spring blackberry presents an interesting case for adventurous native plant gardeners. If you can source it ethically and you’re committed to supporting rare species conservation, it could be a meaningful addition to your landscape. However, given its rarity and our limited knowledge about its specific needs, it’s not a plant for beginners or casual gardeners.

For most gardeners in the region, focusing on more common native Rubus species or other Mid-Atlantic natives might be a better starting point. But for those passionate about rare plant conservation and willing to do the extra work to source and care for uncommon species, the Cold Spring blackberry offers a chance to be a steward of botanical diversity.

Remember: with rare plants comes great responsibility. If you choose to grow Rubus originalis, you’re not just adding to your garden – you’re helping write the next chapter in this species’ survival story.

Cold Spring Blackberry

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 originalis L.H. Bailey - Cold Spring blackberry

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