Not a true yucca as its name suggests, the red yucca (Hesperaloe parviflora) produces bluish-green, sword-shaped, grasslike leaves and 4- to 8-foot-tall flower stalks bearing coral, red or yellow blooms. This succulent grows in U.S. Department of Agriculture plant hardiness zones 5 through 11 and keeps its leaves year-round. Flower stalks appear in early to midsummer and may stay throughout fall. The red yucca is highly drought-tolerant and requires only a suitable planting spot and minimal maintenance to ensure it remains healthy and blooms each year. Plant the red yucca in the warmest part of your garden. Choose a site with well-draining soil that receives at least six to eight hours of direct, intense sun.
1 Clear debris, dead plant material and weeds from the ground around the red yucca in early spring, just before new growth begins. Fertilize the plant with 10-10-10, slow-release, granular fertilizer to replenish soil nutrients. Apply the fertilizer at a rate of 1 tablespoon per 1 square foot of soil, broadcasting it in a ring around the plant. Keep the granules at least 6 inches away from the red yucca's stems. Rake the fertilizer into the top 3 inches of soil. Water the area thoroughly.
2 Moisten the soil surrounding the plant to a depth of 10 to 12 inches with water from a garden hose when the soil dries completely. Water in the morning to allow the foliage time to dry before nightfall. Never allow the soil to become soggy or waterlogged.
3 Cut off any dead, dry or brown leaves with a pair of pruning shears whenever you see them. Make each cut as close to the leaf's base as possible without damaging the plant's crown.
4 Remove red yucca flower stalks with a pair of pruning shears once the blooms fade and begin to fall. This promotes the development of new blooms. Cut horizontally through the stalk's base, 1/4 inch above the point where it joins the plant.