Family: Scrophulariaceae (skrof-yoo-larr-ee-AY-see) (Info) Genus: Penstemon (PEN-stem-on) (Info) Species: heterophyllus (het-er-oh-FY-luh) (Info) Cultivar: True Blue
One vendor has this plant for sale.
Category: Alpines and Rock Gardens Perennials
Height: 12-18 in. (30-45 cm)
Spacing: 9-12 in. (22-30 cm)
Hardiness: USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F)
Sun Exposure: Full Sun
Danger: N/A
Bloom Color: Medium Blue
Bloom Time: Mid Summer
Foliage: Herbaceous
Other details: This plant is attractive to bees, butterflies and/or birds Average Water Needs; Water regularly; do not overwater
Soil pH requirements: Unknown - Tell us
Propagation Methods: By dividing the rootball From herbaceous stem cuttings From seed; direct sow outdoors in fall From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; sow indoors before last frost
Seed Collecting: N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
|