Pronounciation: YUK-ka a-lo-i-FOL-ee-a
Landscape Use: Background, textural accent, container plant, Spanish or Mediterranean architecture.
Form & Character: Clean, but foreboding plant, clumping, stiff, upright, rigid, not people friendly.
Growth Habit: Evergreen, perennial, semi-woody, slowly and stiffly upright, single trunk to clumping to 25 feet, but can be maintained at much lower height and is generally much smaller in Phoenix.
Foliage/texture: Strap leaves to 2 1/2 feet long, rigid, very sharp pointed and DANGEROUS! Closely set on stems, margins denticulate but not thread bearing; medium coarse texture.
Flowers & fruits: Extended panicles to 2 feet of cream white flowers, sometimes tinged with purple to 4 inches across, fruit are not that cool looking.
Seasonal color: Flower stalks in early summer.
Temperature: Hardy to 10oF.
Light: Full sun to some partial shade.
Watering: More drought tolerant that Y. gloriosa or Y. recurvifolia.
Pruning: Remove old flower stalks.
Propagation: Seed, cuttings (very easy to root), division.
Disease and pests: Spider mites
Additional comments: Several variegated cultivars are sometimes available. In general, this yucca is somewhat more tolerant of full sun in Phoenix than is Y. gloriosa.