Monterey Pine

Pinus radiata

Native to:
Mexican Pacific Is., United States

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Taxonomy

Division:
Coniferophyta | - Conifers
Family:
Pinaceae
Genus:
Pinus
Species:
Pinus radiata
USDA Symbol:
PIRA2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Tree
Height:
3000 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
feb,mar,apr

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

Argyresthia pilatella, Epinotia hopkinsana, Gloveria arizonensis, Mimosa webworm (Exoteleia burkei), Nantucket pine tip moth (Rhyacionia frustrana), orange tortrix moth (Argyrotaenia citrana), Rhyacionia pasadenana, sequoia pitch moth (Synanthedon sequoiae), Silver-spotted Tiger Moth (Lophocampa argentata), Splendid Royal Moth (Citheronia splendens), Umber Moth (Nepytia umbrosaria), Velda pinemoth (Coloradia velda), Entomologist's hairstreak (Incisalia eryphon)

Reported Fauna Sightings

Butterflies:Western Pine (Callophrys eryphon)

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Deer Resistant:
Yes
Salt Tolerant:
Yes
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Moderately fire-tolerant when mature due to thick bark. Young trees are fire-sensitive. Resprouts poorly; relies on seed for post-fire regeneration.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to coastal areas with poor soil fertility

Propagation & Germination

Stratification:
None required
Germination Time:
14–28 days
Notes:
Seeds germinate readily without pretreatment. Best results at 20-25°C with light.

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 require light for germination.

Source: Claude AI