Graythorn (Ziziphus obtusifolia) ZIZ-ih-fuss ob-too-sih-FOE-lee-ah Appropriately named, this open shrub has grayish green leaves and stiff, thorn-tipped branches. With inconspicuous, pale yellow-green flowers in late spring, the pea-size fruits that follow are a showy blue-black. These fruits appeal to birds, and the thorny branches are ideal protection for nesting. Graythorn is a fine backdrop for bold plantings of succulents. Noteworthy Characteristics:  This Southwestern U.S. native has bird-attracting fruit and thorny branches that make good nesting sites. It is a low-maintenance, drought-tolerant shrub. Care:  Grow in full sun and well-drained soil. Beware of the thorns. Problems:  Infrequent.

Overview

Height 3 ft. to 6 ft. Spread 3 ft. to 6 ft. Growth Habit Clumps Light Full Sun Only Moisture Dry to Medium Maintenance Low Characteristics Attracts Song Birds, Native, Showy Fruit Bloom Time Late Spring Flower Color Green, Yellow Uses Beds and Borders Style Desert Garden Seasonal Interest Spring Interest Tolerance Drought Tolerant Type Shrubs