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Juniperus californica
California juniper
Juniperus californica
Juniperus californica, the California juniper, is a juniper native to southwestern North America. It is an evergreen shrub or small tree with scale-like leaves and bluish-purple berries. It's drought-tolerant and well-suited to arid environments, making it valuable for erosion control and native landscaping.
CategoryDetails
Plant TypePerennial plant
Medicinal UsageMedicinal Usage
Estimated Plant Lifespan150 years lifespan
Sun Requirements6+ hours direct sunlight (Full Sun)
Pollination

Method: wind

Watering Requirements

Frequency: Water deeply when soil is dry, especially during establishment. Once established, it is highly drought-tolerant and needs minimal watering.

Notes: Avoid overwatering, as it can lead to root rot.

Humidity Requirements

Level: Low

Cleaning RequirementsPrune lightly to maintain shape and remove dead or diseased branches. Avoid heavy pruning, as it can damage the plant.
Temperature Range

Min: -18°C

Max: 38°C

Alternative Namessweet-berried juniper, desert white cedar
Arctostaphylos glandulosa
Eastwood's Manzanita
Arctostaphylos glandulosa
Both are adapted to similar dry, rocky habitats and can create a visually appealing and ecologically functional plant community.
Salvia apiana
white sage
Salvia apiana
White sage shares similar habitat preferences and its aromatic foliage can potentially deter some pests.
Pinus ponderosa
Western Ponderosa Pine
Pinus ponderosa

Ponderosa pines, when mature, can outcompete California Juniper for resources like sunlight and water, potentially suppressing its growth.

Spider Mites

Spider mites are tiny pests that suck sap from the needles, causing yellowing, bronzing, and eventual needle drop. Look for fine webbing on the plant.

Juniper Scale

Juniper scale are small, white, scale-like insects that attach themselves to the twigs and needles, sucking sap. Heavy infestations can cause yellowing, stunting, and dieback.

Steps:

    • Collect seeds from mature berries in the fall.
    • Stratify seeds by storing them in a cool, moist environment (e.g., refrigerator) for several months to break dormancy.
    • Sow seeds in well-draining soil in spring.
    • Keep the soil moist but not waterlogged until germination.
    • Take semi-hardwood cuttings in late summer or early fall.
    • Dip the cut end in rooting hormone.
    • Place cuttings in a well-draining propagation mix.
    • Keep the cuttings moist and in a humid environment until rooted.

Neem Oil

Effective against spider mites and juniper scale.

Diatomaceous Earth

Can be used as a physical barrier against crawling pests.