Taxonomy

Division:

Coniferophyta | - Conifers

Family:

Pinaceae

Genus:

Pinus

Species:

Pinus johannis

USDA Symbol:

PIJO

Growth Characteristics

Height:

1000 cm

Light Requirements:

Full Sun

Drought Tolerance:

High

Keystone Species Ranking

Caterpillar Keystone:

★★★★★ Butterfly & moth species supported by this genus (NWF)

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. Resprouts from crown after moderate damage.

Soil Requirements

Soil Type:

rocky, well-drained, nutrient-poor soil

pH:

5.5 - 7.5 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

native to mountainous regions with sparse vegetation

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–28 days

Notes:

Seeds germinate readily after cold stratification. Light is not required for germination.

The above propagation data sourced from Claude AI