Penstemon rydbergii (Rydberg’s penstemon)

Widespread native perennial with woody rhizomes and bright blue or purple flowers, blooming June to August. Moderately drought tolerant, occurring on dry to moist meadows, shrublands, open woodlands and streambanks; 2,000 to 13,000 ft. elevation. Foliage is more palatable to browsing herbivores than most other penstemon species. Attracts hummingbirds, butterflies and pollinating insects.

DISTRIBUTION / ADAPTATION

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INFORMATION & ATTRIBUTES

Family: Scrophulariaceae

Duration: Perennial

Growth Habit: Forb/herb/subshrub

Native Status: Native

Growth Form: Bunch

Mature Height: 36 in.

Bloom Color: Blue

Bloom Period: Mid summer

Annual Precipitation: 20-30 in.

Drought Tolerance: Low

Shade Tolerance: Intolerant

Elevation:

Wetland Indicator Status: FACU

Fire Resistance: No

Fire Tolerance: Medium

Nitrogen Fixation: None

SOIL ADAPTATION

Coarse Texture: No

Medium Texture: Yes

Fine Texture: Yes

Salinity Tolerance: None

CaCO3 Tolerance: Yes

pH Range: 6.0-8.0


SEEDING NOTES

Seeds per Pound: 131,900

Seeding Rate: .85 PLS lbs/acre

Season: Fall

Days to Germination:


VARIETIES & LOCAL ACCESSIONS

None