Yucca gloriosa is an evergreen shrub. The plant is known to grow to heights above 5 m (16 feet). It is caulescent, usually with several stems arising from the base, the base thickening in adult specimens. The long narrow leaves are straight and very stiff, growing to 30–50 cm (12–20 in) long and 2-3.5 cm wide. They are dark green with entire margins, smooth, rarely finely denticulate, acuminate, with a sharp brown terminal spine.
Plant or position your Yucca gloriosa in a full sun location that provides your shrub with at least six hours of bright, direct sunlight per day. Note that if you plant or position a Yucca gloriosa in a location that receives too little sun, it will not have access to the sunlight it needs to produce its characteristic white blossoms.
- Water drought-tolerant Yucca gloriosa sparingly to avoid over-watering. Provide the shrub with just 1/2 inch of supplemental irrigation each week when rainfall fails to provide a comparable amount of moisture.
- Fertilize your Yucca gloriosa in the early spring before the shrub presents new growth. Use a balanced, water soluble all-purpose fertilizer or one that has been specially formulated for use with evergreen plants. Apply a single fertilizer application according to the package instructions.
- Remove any discolored, diseased or dead foliage from your Yucca gloriosa on an as-needed basis throughout the growing season to maintain the shrub’s health and appearance. Cut unwanted foliage from the shrub with sharpened and sterilized pruning shears. Avoid leaving the removed foliage at the base of your shrub as this may invite or increase unwanted insect activity.