Carried by 2 nurseries
View Availability at NurseryData provided by the participants of the Consortium of California Herbaria
View additional distribution information on the Jepson eflora
Juniperus californica (California Juniper) is a species in the Cupressaceae (Cypress) family native to southwestern North America; as the name implies, it is mainly found in California, but also extends through most of Baja California, and a short distance into southern Nevada and western Arizona. It grows at moderate altitudes of 750-1,600 meter. It is a shrub or small tree reaching 3-8 meter (rarely to 10 meter) tall. It is much branched from the base. The shoots are fairly thick compared to most junipers, 1.5-2 millimeter diameter. The leaves are arranged in opposite decussate pairs or whorls of three; the adult leaves are scale-like, 1-2 millimeter long (to 5 millimeter on lead shoots) and 1-1.5 millimeter broad. The juvenile leaves (on young seedlings only) are needle-like, 5-10 millimeter long. The cones are berry-like, 7-13 millimeter in diameter, blue-brown with a whitish waxy bloom, and contain a single seed (rarely two or three); they are mature in about 8-9 months. The male cones are 2-4 millimeter long, and shed their pollen in early spring. It is largely dioecious producing cones of only one sex, but around 2% of plants are monoecious, with both sexes on the same plant. The bark is typically thin and appears to be "shredded." In the garden this plant is tolerant of many soils and requires minimal water once established. It becomes wider than tall so give it plenty of room.
Tree
10 - 26 ft Tall
20 ft Wide
Rounded
Moderate, Slow
Evergreen
Pleasant
Bank stabilization, Hedge
Full Sun, Partial Shade
Low, Very Low
Max 1x / month once established
Moderate
Tolerates cold to 10° F
Fast, Medium
Typically coarse, well drained and low nutrient soil such as decomposed granite.
Soil PH: 7.0 - 8.0
Prune in winter when wood boring insects are less active.
3, 6, 7*, 8, 9, 10, 11, 12, 14*, 15*, 16*, 17, 18*, 19*, 20*, 21*, 22*, 23*, 24
Dry slopes and flats of high desert in the south to somewhat more mesic slopes of the Coast Ranges and Sierras
Foothill Woodland, Joshua Tree Woodland, Pinyon-Juniper Woodland
In the wild it grows with many companions depending on location. In the garden it needs plenty of room and does not allow understory plants, but can be planted adjacent to Big Sagebrush (Artemisia tridentata), Buckwheat (Eriogonum spp.), Apache Plume (Fallugia paradoxa), Flannelbush (Fremontodendron californicum), Yucca (Hesperoyucca spp. or Yucca spp.), Antelope Brush (Purshia tridentata var. glandulosa), and various cactus species
Butterflies and moths supported
4 confirmed and 23 likely
Olive Hairstreak
Callophrys gryneus
Sequoia Sphinx Moth
Sphinx sequoiae