Is it deer resistant?

Yes

Common Rue is deer resistant.

Ruta graveolens

Deer: Rarely
Height: 3 ft (91 cm)
Spread: 3 ft (91 cm)
Zones: 4–11
Light: Full sun

Herb
Perennial
Shrub

Common Rue (Ruta graveolens)

Photo: Amada44 · CC BY-SA 3.0

Also called Garden Rue, Herb of Grace, Rue

HerbRuta

More details

Light: Full sun, Partial shade
Water: Low, Medium
Type: Herb, Perennial, Shrub
Maintenance: Low
Growth: Medium
Bloom: Fall, Summer
Foliage: Evergreen
Features: Drought tolerant, Flowering, Poisonous
Best uses: Border, Hedge, Naturalized, Woodland