Yucca, Color Guard Adam's NeedleColor Guard Adams Needle is a nearly stemless evergreen shrub with large, slightly arching, sword like foliage that has creamy gold centers and dark green margins. Long curly white strings can be found at the leaf margins. A central stalk rises in summer bearing long panicles of fragrant creamy white flowers. Best color with full sun and well drained soils. Surprisingly tolerate of partial shade. Heat and drought tolerant. Yucca filamentosa is a