North America Non-native Plant

Caragana ×sophorifolia

Botanical name: Caragana ×sophorifolia

USDA symbol: CASO9

Native status: Not native but doesn't reproduce and persist in the wild

The Mysterious Caragana ×sophorifolia: A Garden Enigma If you’ve stumbled across the name Caragana ×sophorifolia in your gardening research, you might be scratching your head wondering what exactly this plant is—and you wouldn’t be alone! This particular designation represents one of those botanical mysteries that even experienced gardeners and plant ...

The Mysterious Caragana ×sophorifolia: A Garden Enigma

If you’ve stumbled across the name Caragana ×sophorifolia in your gardening research, you might be scratching your head wondering what exactly this plant is—and you wouldn’t be alone! This particular designation represents one of those botanical mysteries that even experienced gardeners and plant experts find puzzling.

What We Know (And Don’t Know)

Caragana ×sophorifolia appears to be a hybrid within the Caragana genus, as indicated by the × symbol in its botanical name. However, reliable information about this specific plant is remarkably scarce in horticultural literature and botanical databases. This could mean several things: it might be an extremely rare hybrid, a historical designation that’s no longer in common use, or possibly a misidentification that’s made its way into some plant lists.

The Caragana genus itself is well-known and includes many hardy, useful shrubs commonly called pea shrubs or Siberian peashrubs. These tough plants are beloved for their ability to fix nitrogen in the soil and thrive in challenging conditions.

Geographic Distribution and Native Status

Unfortunately, the geographic distribution and native status of Caragana ×sophorifolia remain unclear due to the lack of documented information about this specific hybrid.

Should You Plant It?

Here’s where things get tricky. Since reliable information about Caragana ×sophorifolia’s characteristics, growing requirements, and availability is virtually non-existent, it’s difficult to recommend whether you should plant it—or even whether you can find it for sale!

If you’re interested in the Caragana genus, you’re in luck. There are several well-documented species that make excellent garden additions:

  • Caragana arborescens (Siberian Peashrub) – Extremely hardy and drought-tolerant
  • Caragana microphylla (Littleleaf Peashrub) – Compact growth habit
  • Caragana frutex (Russian Peashrub) – Good for hedging

Alternative Recommendations

If you’re drawn to the idea of growing something from the Caragana family, consider starting with one of the more readily available species. These plants typically offer:

  • Excellent cold hardiness (often to USDA zones 2-3)
  • Drought tolerance once established
  • Nitrogen-fixing abilities that benefit soil health
  • Yellow pea-like flowers in spring
  • Ability to thrive in poor soils

The Bottom Line

While Caragana ×sophorifolia remains an intriguing botanical puzzle, the lack of available information makes it impractical for most gardeners to pursue. Instead, explore the many wonderful, well-documented Caragana species that can bring hardiness, beauty, and ecological benefits to your landscape. Sometimes the best garden adventures come from plants we can actually find, grow, and enjoy!

If you do happen to encounter this mysterious hybrid in your gardening travels, consider yourself lucky—you might just be looking at one of horticulture’s rare enigmas.

Caragana ×sophorifolia

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

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Caragana Fabr. - peashrub

Species

Caragana ×sophorifolia Tausch

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