North America Non-native Plant

Celotti’s Hawthorn

Botanical name: Crataegus ×ninaecelottiae

USDA symbol: CRNI8

Life cycle: perennial

Habit: shrub

Native status: Non-native, reproduces and persists in the wild in Canada  

Celotti’s Hawthorn: A Mysterious Hybrid Worth Knowing About Have you ever stumbled across a plant name that sounds intriguing but seems shrouded in mystery? Meet Celotti’s hawthorn (Crataegus ×ninaecelottiae), a hybrid hawthorn species that’s more enigma than open book in the gardening world. What We Know About Celotti’s Hawthorn Celotti’s ...

Celotti’s Hawthorn: A Mysterious Hybrid Worth Knowing About

Have you ever stumbled across a plant name that sounds intriguing but seems shrouded in mystery? Meet Celotti’s hawthorn (Crataegus ×ninaecelottiae), a hybrid hawthorn species that’s more enigma than open book in the gardening world.

What We Know About Celotti’s Hawthorn

Celotti’s hawthorn is a perennial shrub that typically grows as a multi-stemmed woody plant, usually reaching heights of 13 to 16 feet, though it can sometimes grow taller or develop a single stem depending on growing conditions. The × in its scientific name tells us this is a hybrid – essentially nature’s (or a breeder’s) experiment in mixing hawthorn genetics.

Where You’ll Find It

This particular hawthorn has established itself in Ontario, Canada, where it’s considered a non-native species that reproduces on its own in the wild. While it wasn’t originally from this region, it has managed to naturalize and persist without human intervention.

The Information Gap Challenge

Here’s where things get tricky for us gardeners – there’s surprisingly little detailed information available about Celotti’s hawthorn’s specific growing requirements, mature size, ornamental value, or ecological benefits. This lack of documentation makes it difficult to provide solid advice about whether you should add it to your landscape.

Should You Plant Celotti’s Hawthorn?

Given the limited information available about this hybrid, it’s hard to make a strong recommendation either way. We don’t know enough about its:

  • Invasive potential
  • Specific care requirements
  • Wildlife value
  • Ornamental characteristics
  • Hardiness zones

When faced with such uncertainty, many experienced gardeners prefer to choose plants with well-documented benefits and known growing requirements.

Consider These Native Hawthorn Alternatives

If you’re drawn to hawthorns for your landscape, consider these well-documented native options instead:

  • Downy Hawthorn (Crataegus mexicana) – Beautiful spring flowers and excellent wildlife value
  • Black Hawthorn (Crataegus douglasii) – Stunning fall color and important food source for birds
  • River Hawthorn (Crataegus rivularis) – Thrives in moist conditions with lovely white blooms

These native hawthorns offer proven benefits to local ecosystems, well-understood growing requirements, and documented ornamental value – giving you more confidence in your planting decisions.

The Bottom Line

While Celotti’s hawthorn might have its merits, the lack of available information makes it a bit of a gardening wildcard. Sometimes the most satisfying garden choices are the ones where you know exactly what you’re getting – beautiful flowers, happy pollinators, and successful growth. Until more research emerges about this mysterious hybrid, you might be better served by choosing one of the many well-documented native hawthorn species that can deliver all the beauty and ecological benefits you’re looking for.

Celotti’s Hawthorn

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

Crataegus L. - hawthorn

Species

Crataegus ×ninae-celottiae K.I. Chr. & T.A. Dickinson [monogyna × punctata] - Celotti's hawthorn

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