North America Native Plant

Red Buckthorn

Botanical name: Frangula rubra rubra

USDA symbol: FRRUR

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Synonyms: Rhamnus rubra Greene (RHRU)   

Red Buckthorn: A Native Shrub for Western Gardens Meet red buckthorn (Frangula rubra rubra), a charming native shrub that’s been quietly thriving in the western United States long before any of us thought about landscaping. If you’re looking to add some authentic regional character to your garden while supporting local ...

Red Buckthorn: A Native Shrub for Western Gardens

Meet red buckthorn (Frangula rubra rubra), a charming native shrub that’s been quietly thriving in the western United States long before any of us thought about landscaping. If you’re looking to add some authentic regional character to your garden while supporting local ecosystems, this perennial woody wonder might just be your new best friend.

What Is Red Buckthorn?

Red buckthorn is a multi-stemmed shrub that typically grows to a manageable 13-16 feet in height, though it can sometimes stretch taller or remain more compact depending on where it’s planted. As a perennial, it’s in it for the long haul – plant it once, and you’ll have a reliable garden companion for years to come.

You might also see this plant listed under its scientific synonym, Rhamnus rubra Greene, in older gardening references or botanical texts.

Where Red Buckthorn Calls Home

This native beauty is naturally found in California and Nevada, making it perfectly adapted to the unique growing conditions of these western states. When you plant red buckthorn, you’re essentially welcoming a local resident back to the neighborhood.

Why Consider Red Buckthorn for Your Garden?

There are several compelling reasons to give red buckthorn a spot in your landscape:

  • Native plant benefits: As a true native, it’s already adapted to local climate conditions and requires less water and maintenance once established
  • Wildlife support: Native plants like red buckthorn typically provide food and habitat for local wildlife and pollinators
  • Low maintenance: Once established, native shrubs generally need less fussing than non-native alternatives
  • Authentic regional character: It adds genuine local flavor to your landscape design

Garden Design and Landscape Use

Red buckthorn works beautifully in naturalistic landscape designs, native plant gardens, and wildlife-friendly spaces. Its shrub form makes it excellent for:

  • Creating natural privacy screens or hedges
  • Adding structure to mixed native plant borders
  • Providing backbone plantings in xeriscaped gardens
  • Supporting wildlife habitat gardens

Growing Red Buckthorn Successfully

While specific growing requirements for this particular subspecies aren’t extensively documented, most Frangula species prefer well-draining soil and can tolerate a range of conditions once established. Since it’s native to California and Nevada, it’s likely adapted to Mediterranean-type climates with dry summers and mild, wetter winters.

Here are some general guidelines for success:

  • Location: Choose a spot that mimics its native habitat
  • Soil: Well-draining soil is typically preferred
  • Water: Once established, it should be quite drought-tolerant
  • Maintenance: Minimal pruning needed, just remove dead or damaged branches

A Word of Caution

Since detailed horticultural information about this specific subspecies is limited, we recommend sourcing plants from reputable native plant nurseries in your area. They’ll have the best advice for growing conditions specific to your location and can ensure you’re getting authentic, locally-sourced material.

The Bottom Line

Red buckthorn represents an opportunity to garden with nature rather than against it. While it may not be the showiest plant in the nursery, it offers the quiet satisfaction of supporting local ecosystems while adding authentic regional character to your landscape. If you’re in California or Nevada and looking to go native, red buckthorn deserves a place on your consideration list.

Just remember to source it responsibly and give it the well-draining conditions it prefers. Your local wildlife – and your water bill – will thank you!

Red Buckthorn

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

Rhamnales

Family

Rhamnaceae Juss. - Buckthorn family

Genus

Frangula Mill. - buckthorn

Species

Frangula rubra (Greene) V. Grub. - red buckthorn

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