North America Non-native Plant

Climbing Cactus

Botanical name: Epiphyllum phyllanthus

USDA symbol: EPPH

Life cycle: perennial

Habit: subshrub

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

The Mysterious Climbing Cactus: What We Know About This Elusive Plant If you’ve stumbled across the name climbing cactus (Epiphyllum phyllanthus) in your plant research, you might be scratching your head wondering why there’s so little information available. You’re not alone! This particular species is something of a botanical mystery, ...

The Mysterious Climbing Cactus: What We Know About This Elusive Plant

If you’ve stumbled across the name climbing cactus (Epiphyllum phyllanthus) in your plant research, you might be scratching your head wondering why there’s so little information available. You’re not alone! This particular species is something of a botanical mystery, with very limited documentation in both scientific literature and gardening resources.

The Challenge of the Unknown

Here’s the thing about Epiphyllum phyllanthus – it’s either extremely rare, poorly documented, or possibly represents an outdated or misapplied scientific name. While we know it’s classified as a perennial shrub that can grow less than 13-16 feet in height with multiple stems, most other details about this plant remain unknown, including its native range, growing conditions, and garden suitability.

What This Means for Gardeners

The lack of reliable information about Epiphyllum phyllanthus presents several challenges for home gardeners:

  • Unknown native status makes it impossible to determine if it’s appropriate for native plant gardens
  • Uncertain growing requirements mean you’d be experimenting without guidance
  • Unclear availability – you’re unlikely to find this plant at nurseries
  • No established care protocols or troubleshooting resources

A Better Path Forward

Instead of pursuing this mysterious climbing cactus, consider these well-documented alternatives that offer similar appeal:

If you’re drawn to epiphytic cacti (those that naturally grow on other plants), look into well-established species like Epiphyllum oxypetalum (Queen of the Night) or various Rhipsalis species. These have clear growing guides, known native ranges, and established care requirements.

For climbing or trailing succulents that are better documented, consider native options specific to your region, or well-researched non-native species that aren’t invasive in your area.

The Bottom Line

While the intrigue of growing something rare and mysterious might be tempting, successful gardening usually relies on choosing plants with known requirements and proven track records. The lack of information about Epiphyllum phyllanthus makes it a risky choice for most gardeners.

If you’re specifically interested in this plant, consider reaching out to botanical gardens, cactus and succulent societies, or university extension programs – they might have insights that aren’t readily available in popular gardening resources. Just remember that gardening is most rewarding when you can provide your plants with the conditions they need to thrive!

Climbing Cactus

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Cactaceae Juss. - Cactus family

Genus

Epiphyllum Haw. - climbing cactus

Species

Epiphyllum phyllanthus (L.) Haw. [excluded] - climbing cactus

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