Yucca is a genus of flowering plants that includes 40 species, many native to the United States. Desert plants, yuccas are easy to grow and make a striking centerpiece in many xeriscape gardens. The most important requirement for a healthy yucca plant is well-draining soil, preferably a sandy, cactus-type soil. Yucca requires very little water, and when you do water it needs to drain quickly so the plant doesn't rot.
Water container-grown yucca when the top 2/3 of the soil in the pot is dry. Apply water to the soil until it runs out of the bottom of the pot. Do not allow water to stand in a saucer under the pot.
Water ground-grown yucca only during particularly dry periods and until the top 4 inches of soil is wet.
Withhold water completely from late fall to early spring.