San Gabriel Beardtongue

Penstemon labrosus

Native to:
Mexico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Plantaginaceae
Genus:
Penstemon
Species:
Penstemon labrosus
USDA Symbol:
PELA6

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
120 cm
Light Requirements:
Part Shade
Drought Tolerance:
High
Bloom Months:
may,jun,jul,aug
Bloom Colors:
red, orange

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:
hummingbirds, bees, butterflies
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from basal crown following fire; typical of chaparral and montane understory species.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
Prefers rocky or gravelly areas typical of its native range.

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–90 days
Germination Time:
14–30 days
Notes:
Light may aid germination. Seeds benefit from cold stratification but some lots germinate without treatment.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: Most interbreed and seed may not be what is labelled; germinates best with stored seed, even as long as 10 years at 20°

Source: Ontario Rock Garden & Hardy Plant Society