Prairie Expedition? Elm Tree - Ulmus americana 'Prairie Expedition'

Prairie Expedition® Elm Tree (Ulmus americana 'Prairie Expedition')

The Prairie Expedition® Elm, also called the Lewis and Clark Elm, is a dependable shade tree built to withstand harsh winters and urban environments. What sets this variety apart is its exceptional resistance to Dutch Elm Disease, a trait inherited from a disease-resistant parent specimen. If you're looking to buy Prairie Expedition® Elm online, you'll find a tree that combines timeless beauty with outstanding durability and low maintenance requirements.

Landscaping Uses

This elm thrives along streets, in parks, and across open properties where a substantial canopy tree is needed. Its towering form works beautifully as a standalone specimen or planted in groupings to create natural shade structures. Because it handles urban pollution, compacted soil, and variable moisture levels with ease, it's ideal for residential yards, commercial landscapes, and public spaces where other trees struggle to survive.

Specifications

Height: 50–60 feet
Width: 40–50 feet
Growth Rate: Moderate
Sun: 6–8 hours of direct sunlight daily
Water: Adaptable; prefers moist, rich soil but tolerates both wet and dry conditions
Soil: Tolerant of most soil types
USDA Zones: 3–9

Why Homeowners Love It

• Strong immunity to Dutch Elm Disease ensures a long, healthy life—often 100+ years
• Distinctive vase or cathedral shape provides elegant structure and dramatic branching
• Unfazed by cold snaps, pollution, and fluctuating moisture levels
• Stunning golden foliage in autumn and small green flowers in spring

Planting & Care

Select a location receiving at least six to eight hours of daily sunlight and position your elm away from overhead power lines due to its substantial mature height. Plant in well-draining soil and water regularly during establishment, though this tree adapts well to both wet and dry sites once rooted. As it grows, prune lower branches in late winter after extreme cold passes to create clearance beneath the canopy and encourage better air circulation. Fertilize with a balanced formula during spring growth and mulch around the base to maintain soil moisture and regulate temperature.