North America Non-native Plant

Rosa ×waitziana

Botanical name: Rosa ×waitziana

USDA symbol: ROWA5

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

The Mystery of Rosa ×waitziana: An Elusive Rose Hybrid If you’ve stumbled across the name Rosa ×waitziana in your gardening research, you’re not alone in scratching your head. This particular rose hybrid has managed to stay remarkably under the radar, leaving even dedicated rose enthusiasts and botanists with more questions ...

The Mystery of Rosa ×waitziana: An Elusive Rose Hybrid

If you’ve stumbled across the name Rosa ×waitziana in your gardening research, you’re not alone in scratching your head. This particular rose hybrid has managed to stay remarkably under the radar, leaving even dedicated rose enthusiasts and botanists with more questions than answers.

What We Know (And Don’t Know)

The × in Rosa ×waitziana tells us this is supposed to be a hybrid rose – a cross between two different rose species or varieties. The name suggests it may have been named after someone called Waitz, but beyond that, reliable information becomes frustratingly scarce.

Here’s what we’re dealing with:

  • No widely recognized common name
  • Unclear native status or origin
  • Unknown geographical distribution
  • No documented growing requirements
  • Uncertain availability in the nursery trade

The Challenge for Gardeners

If you’re hoping to add Rosa ×waitziana to your garden, you’re facing a genuine puzzle. This hybrid appears to be either extremely rare, possibly extinct in cultivation, or the name itself might be outdated or invalid in current botanical classification systems.

Without knowing its specific characteristics, growing requirements, or even if it’s still available anywhere, it’s nearly impossible to provide meaningful cultivation advice.

What This Means for Your Garden

While we can’t guide you on growing this particular mystery rose, this situation highlights an interesting aspect of plant nomenclature – not every botanical name you encounter will correspond to a plant you can actually find or grow.

If you’re drawn to the idea of growing hybrid roses, there are countless well-documented and readily available options that offer:

  • Reliable growing information
  • Predictable characteristics
  • Availability from reputable nurseries
  • Support from gardening communities

Alternative Rose Recommendations

Instead of chasing this botanical ghost, consider exploring native rose species in your area or well-established hybrid varieties with proven track records. Native roses offer excellent wildlife benefits, often require less maintenance, and provide authentic regional character to your landscape.

Your local extension office or native plant society can help you identify rose species that are truly native to your region and will thrive in your specific growing conditions.

The Bottom Line

Rosa ×waitziana remains an enigma in the rose world. Whether it represents a lost hybrid, an outdated name, or simply a very rare plant that’s escaped widespread documentation, it serves as a reminder that the plant kingdom still holds mysteries – even in our well-cataloged modern world.

For practical gardening purposes, you’re better off focusing your energy on roses with established reputations and available growing information. But if you’re a plant detective at heart, Rosa ×waitziana certainly presents an intriguing case to investigate further!

Rosa ×waitziana

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

Rosa L. - rose

Species

Rosa ×waitziana Tratt.

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