Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Plantaginaceae

Genus:

Penstemon

Species:

Penstemon guadalupensis

USDA Symbol:

PEGU

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

60 cm

Light Requirements:

Part Shade

Drought Tolerance:

High

Bloom Months:

apr,may,jun

Bloom Colors:

lavender, purple, white

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:

bees, hummingbirds, butterflies

Deer Resistant:

Yes

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts from root crown following fire; fire can stimulate new growth and reduce competing vegetation.

Soil Requirements

Soil Type:

rocky, well-drained, nutrient-poor soil

pH:

6.0 - 7.5 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

native to arid, mountainous regions

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

Light aids germination; sow on surface or cover lightly. Cool temperatures (55-65°F) improve germination rates.

The above propagation data sourced from Claude AI