Scientific: Yucca gloriosa
Common: Spanish dagger, soft-tip yucca
Family: Agavaceae
Origin: Coastal plain of North Carolina to Florida

Hardiness zones
Sunset
7-9, 12-13 (avoid sun full and reflected radiation exposures), 14-24
USDA 8 - 11

Landscape Use: Accent, focal point, Spanish architecture, tropical to subtropical, classic mesic yucca

Form & Character: Evergreen perennial, upright and arborescent

Growth Habit: Moderately upright to 10-15', multiple trunk

Foliage/texture: Strap-like medium green leaves, 2.5' long by 2-3" wide, tapering to a sharp tip, somewhat bendable, loosely set on stems, coarse texture

Flowers & fruits: Panicles of greenish to cream to pink flowers followed by 6-ribbed fruits

Seasonal color: Cream white flowers in early summer

Temperature: Hardy to 10oF

Light: Partial sun best, yellows in full sun in full Phoenix sun.

Soil: Tolerant

Watering: Only moderately drought tolerant, wet soil conditions produce black necrotic spots on leaves.

Pruning: Remove old leaves. Occasionally, 'skin' pruned like some clumping palm.

Propagation: Seed, though stem cutting root fast by merely sticking a large stem segment into the ground outdoors.

Disease and pests: Spider mites

Additional comments: This is a mesic yucca that often looks yellow and chlorotic in Phoenix because it's planted in full sun and/or mixed into a xeric planting theme.