Family: Scrophulariaceae (skrof-yoo-larr-ee-AY-see) (Info)
Genus: Penstemon (PEN-stem-on) (Info)
Species: virgatus (vir-GA-tus) (Info)
Cultivar: Blue Buckle
 2 vendors have this plant for sale.
Category:
Alpines and Rock Gardens
Perennials
Height:
6-12 in. (15-30 cm)
Spacing:
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
Hardiness:
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
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)
Sun Exposure:
Full Sun
Danger:
N/A
Bloom Color:
Blue-Violet
Violet/Lavender
Bloom Time:
Mid Summer
Late Summer/Early Fall
Foliage:
Evergreen
Other details:
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Flowers are good for cutting
Suitable for growing in containers
Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Propagation Methods:
By dividing the rootball
From herbaceous stem cuttings
From semi-hardwood cuttings
Seed Collecting:
Unknown - Tell us
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