Is it deer resistant?

Yes

Itea is deer resistant.

Itea virginica

Deer: Rarely
Height: 8 ft (2.4 m)
Spread: 6 ft (1.8 m)
Zones: 5–10
Light: Full sun

Perennial
Shrub

Itea (Itea virginica)

Photo: Cossey25 · CC BY-SA 4.0

Also called Virginia Sweetspire, Virginia Willow

More details

Light: Full sun, Partial shade, Shade
Water: Medium
Type: Perennial, Shrub
Maintenance: Low
Growth: Medium
Bloom: Spring, Summer
Foliage: Evergreen
Features: Drought tolerant, Flowering, Native
Best uses: Coastal, Hedge, Mass planting, Water edge, Woodland