Is it deer resistant?

Yes

Rock Rose is deer resistant.

Cistus x hybridus

Deer: Rarely
Height: 5 ft (1.5 m)
Spread: 6 ft (1.8 m)
Zones: 7–11
Light: Full sun

Shrub

Rock Rose (Cistus x hybridus)

Photo: Leonora Enking from West Sussex, England · CC BY-SA 2.0

Also called White Rockrose

More details

Light: Full sun
Type: Shrub
Maintenance: Low
Growth: Fast
Bloom: Spring
Foliage: Evergreen
Features: Drought tolerant, Flowering
Best uses: Barrier, Coastal, Hedge, Path, Privacy