Is it deer resistant?

Yes

Rusty Blackhaw is deer resistant.

Viburnum rufidulum

Deer: Rarely
Height: 20 ft (6.1 m)
Spread: 20 ft (6.1 m)
Zones: 5–10
Light: Full sun

Perennial
Shrub
Tree

Rusty Blackhaw (Viburnum rufidulum)

Photo: Mason Brock ( Masebrock ) · Public domain

Also called Rusty Blackhaw Viburnum, Rusty Nannyberry, Southern Black Haw, Southern Blackhaw Viburnum

More details

Light: Full sun, Partial shade
Water: Low, Medium
Type: Perennial, Shrub, Tree
Maintenance: Low
Growth: Slow
Bloom: Spring
Foliage: Deciduous
Features: Flowering, Native
Best uses: Border, Hedge, Lawn, Naturalized, Privacy, Woodland

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