Alligator Juniper

Juniperus deppeana

Native to:
Mexico, United States

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Taxonomy

Division:
Coniferophyta | - Conifers
Family:
Cupressaceae
Genus:
Juniperus
Species:
Juniperus deppeana
USDA Symbol:
JUDE2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Tree
Height:
1500 cm
Light Requirements:
Full Sun
Drought Tolerance:
High

Wildlife Benefits

Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Caterpillar Keystone:
★★★★☆ Butterfly & moth species supported by this genus (NWF)

Host Plant for Caterpillars

Doll's sphinx (Sphinx dollii), Oiketicus sp., Periploca atrata

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Deer Resistant:
Yes
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Mature trees can survive low-intensity surface fires due to thick bark. Seedlings and saplings are fire-sensitive. Fire exclusion has allowed expansion into grasslands.

Soil Requirements

Soil Type:
rocky, well-drained, nutrient-poor soil
pH:
6.0 - 8.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
commonly found in mountainous regions

Propagation & Germination

Stratification:
Warm then cold/moist stratification (double dormancy) — 90–120 days
Germination Time:
30–90 days
Notes:
Seeds have double dormancy requiring warm stratification followed by cold stratification. Germination can be erratic over 1-2 years.

The above propagation data sourced from Claude AI

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 90 days.

Notes: Seeds may require light for germination.

Source: Claude AI