Is it deer resistant?

Yes

Cork Elm is deer resistant.

Ulmus alata

Deer: Rarely
Height: 60 ft (18.3 m)
Spread: 40 ft (12.2 m)
Zones: 6–10
Light: Full sun

Perennial
Tree

Cork Elm (Ulmus alata)

Photo: Jay Sturner from USA · CC BY 2.0

Also called Small Leaf Elm, Wahoo, Winged Elm, Witch Elm

Perennial Ulmus

More details

Light: Full sun, Partial shade
Water: Low, Medium
Type: Perennial, Tree
Maintenance: Low
Growth: Fast
Bloom: Spring, Winter
Foliage: Deciduous
Features: Flowering, Native
Best uses: Naturalized, Shade tree, Specimen, Street tree, Woodland

More in Ulmus