Yucca rostrata Engelm. ex Trel.
Beaked Yucca, Big Bend Yucca
Yucca linearis, Yucca rostrata var. linearis, Yucca sostrata var. linearis
Yucca rostrata is a tree-like plant with one or more upright woody stems with an approximately hemispherical crown of narrow leaves at the top. It slowly grows up to 15 feet (4.5 m) tall. Leaves are stiff, up to 24 inches (60 cm) long and 0.7 inches (1.7 cm) wide, tapering to a sharp point at the tip. They are slightly waxy, pale bluish-green with yellow margins. The old leaves fall off, leaving a fibrous soft gray covering on the trunk. Large clusters of white flowers appear on a yellow-orange, usually about 3.3 feet (1 m) tall stalk that rises above the foliage on mature plants in late spring. The purplish fruits are erect, ovoid to ellipsoid, with a curved beak at the tip, up to 2.8 inches (7 cm) long and 1 inch (2.5 cm) in diameter.
USDA hardiness zones 5a to 10b: from −20 °F (−28.9 °C) to 40 °F (+4.4 °C).
How to Grow and Care
Under the right conditions, Yuccas are not difficult plants to grow. They tend to thrive on a bit of neglect rather than too much attention. They are especially easy to overwater, and soggy stems are a sign of too much water. The best conditions for Yuccas include a sunny corner with relatively low humidity. They are not prone to many pests, although scale can be an issue. Over time, plants will typically lose their lower leaves (in nature, they droop, forming a skirt around the trunk), giving the plant a pleasant "tree-like" appearance.
Yuccas are relatively slow-growing plants that should only need to be repotted every other year. They do well slightly pot-bound as long as they don't become heavy enough to tip over their containers. Repotting larger plants can be difficult, so larger plants can be refreshed with new potting soil by digging out the top 2 inches (5 cm) of the container and adding new soil. During typical repotting, remove the plant from its container and go up one container size. Always use fresh potting soil.
Learn more at How to Grow and Care for Yucca.
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