Is it deer resistant?

Yes

Coral Yucca is deer resistant.

Hesperaloe parviflora

Deer: Rarely
Height: 5 ft (1.5 m)
Spread: 6 ft (1.8 m)
Zones: 6–12
Light: Full sun

Grass Like
Perennial
Succulent

Coral Yucca (Hesperaloe parviflora)

Photo: Daderot · CC0

Also called Hummingbird Yucca, Redflower False Yucca, Red Yucca, Yellow Yucca

Perennial Hesperaloe

More details

Light: Full sun, Partial shade
Water: Low
Type: Grass like, Perennial, Succulent
Maintenance: Low
Growth: Medium
Bloom: Spring, Summer
Features: Drought tolerant, Flowering
Best uses: Coastal, Container, Mass planting, Specimen