Southern California Walnut
Juglans californica
The original uploader was Geographer at English Wikipedia.
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Juglandaceae
- Genus:
- Juglans
- Species:
- Juglans californica
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Shrub , Tree
- Height:
- 20-40 ft
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Medium
- Bloom Months:
- mar, apr, may, jun
- Bloom Colors:
- White, Green, Brown
Native Range
United States: California
Keystone Species Ranking
- Caterpillar Keystone:
- ★☆☆☆☆ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)
Host Plant for Caterpillars
Fall webworm (Hyphantria cunea), Leconte's haploa (Haploa lecontei), Semiothisa aspirata, Spilosoma vestalis, Western tussock moth (Orgyia vetusta)
Soil Requirements
- Soil Type:
- well-drained, sandy loam soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- prefers alluvial soils in native habitat
Germination Information
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 90 days.
Source: OpenAI GPT-4o