North America Non-native Plant

Celtis Glabrata

Botanical name: Celtis glabrata

USDA symbol: CEGL5

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

Celtis glabrata: The Unsung Hero of Southwestern Native Landscaping If you’ve been searching for a tough-as-nails native tree that laughs in the face of drought while providing year-round interest, let me introduce you to Celtis glabrata. This scrappy little tree might not have the flashiest common name (it’s often simply ...

Celtis glabrata: The Unsung Hero of Southwestern Native Landscaping

If you’ve been searching for a tough-as-nails native tree that laughs in the face of drought while providing year-round interest, let me introduce you to Celtis glabrata. This scrappy little tree might not have the flashiest common name (it’s often simply called smooth hackberry), but don’t let its modest reputation fool you – it’s a true champion of water-wise gardening.

Where Does Celtis glabrata Call Home?

Celtis glabrata is a proud native of the American Southwest, naturally occurring across Arizona, New Mexico, Texas, and extending into Mexico. This tree has evolved to thrive in some of the most challenging growing conditions imaginable, from rocky hillsides to desert washes. If you’re gardening in these regions, you’re looking at a plant that truly belongs in your landscape.

What Makes This Tree Special?

Don’t expect towering majesty from Celtis glabrata – this is more of a charming character actor than a leading man in the garden drama. Here’s what you can expect:

  • Mature size of 15-25 feet tall and wide, making it perfect for smaller spaces
  • Smooth, gray bark that adds winter interest
  • Simple, oval leaves that turn yellow in fall
  • Small, inconspicuous spring flowers that pollinators adore
  • Attractive orange to reddish berries that birds go crazy for

Why Your Garden (and Local Wildlife) Will Love It

Celtis glabrata is like that reliable friend who’s always there when you need them. It provides essential habitat for native birds, who feast on its berries and nest in its branches. The small flowers may not win any beauty contests, but they’re absolute magnets for native bees and other small pollinators who need nectar sources in the sometimes sparse southwestern landscape.

From a design perspective, this tree shines as a specimen plant in xeriscape gardens or as part of a native plant community. Its modest size makes it ideal for courtyards, smaller yards, or anywhere you need a tree that won’t overwhelm the space or your water budget.

Growing Conditions That Make It Happy

Here’s where Celtis glabrata really shows off – it’s remarkably adaptable and forgiving:

  • Sun exposure: Full sun to partial shade (though it prefers full sun)
  • Soil: Well-draining soils of almost any type, including rocky or sandy conditions
  • Water: Drought tolerant once established, but appreciates occasional deep watering
  • USDA hardiness zones: 7-10

Planting and Care Tips for Success

The beauty of Celtis glabrata lies in its low-maintenance nature, but a little attention during establishment goes a long way:

  • Best planting time: Fall or early spring when temperatures are mild
  • Watering: Water regularly during the first year to help establish a strong root system, then reduce to occasional deep watering
  • Mulching: Apply a 2-3 inch layer of organic mulch around the base, keeping it away from the trunk
  • Pruning: Minimal pruning needed – just remove dead or crossing branches in late winter
  • Fertilizing: Generally unnecessary in native soils

Is Celtis glabrata Right for Your Garden?

This tree is an excellent choice if you’re looking to create a sustainable, water-wise landscape that supports local wildlife. It’s particularly valuable in:

  • Xeriscape and drought-tolerant gardens
  • Native plant landscapes
  • Wildlife habitat gardens
  • Areas where you need a smaller tree that won’t interfere with power lines

However, if you’re hoping for a fast-growing shade tree or something with showy flowers, you might want to consider other options. Celtis glabrata is more about quiet reliability than dramatic flair.

The Bottom Line

Celtis glabrata may not be the most glamorous tree in the nursery, but it’s exactly the kind of steady, dependable native plant that forms the backbone of a truly sustainable landscape. It asks for little, gives generously to wildlife, and quietly goes about the business of being exactly what your southwestern garden needs. In a world of high-maintenance landscaping, sometimes the most beautiful choice is the one that simply belongs.

Celtis Glabrata

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Hamamelididae

Order

Urticales

Family

Ulmaceae Mirb. - Elm family

Genus

Celtis L. - hackberry

Species

Celtis glabrata Steven ex Planch.

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