Is it deer resistant?

Yes

Carpet Box is deer resistant.

Pachysandra terminalis

Deer: Rarely
Height: 12 in (31 cm)
Spread: 12 in (31 cm)
Zones: 4–10
Light: Partial shade

Ground cover
Perennial
Shrub

Carpet Box (Pachysandra terminalis)

Photo: Vassil · Public domain

Also called Japanese Pachysandra, Japanese Spurge, Pachysandra

Ground cover Pachysandra

More details

Light: Partial shade, Shade
Water: Medium
Type: Ground cover, Perennial, Shrub
Maintenance: Low
Growth: Slow
Bloom: Spring
Foliage: Evergreen
Features: Flowering
Best uses: Border, Foundation, Mass planting, Naturalized, Play area, Slope

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Pachysandra procumbens