Family: Boraginaceae
Genus: Pulmonaria (pul-muh-NARE-ee-ah) (Info)
Cultivar: Excalibur
Additional cultivar information: (PP08958)
Hybridized by Heims; Year of Registration or Introduction: 1993
 5 members have or want this plant for trade.
Category:
Perennials
Height:
6-12 in. (15-30 cm)
Spacing:
18-24 in. (45-60 cm)
Hardiness:
USDA Zone 4b: to -31.6 °C (-25 °F)
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)
Sun Exposure:
Light Shade
Partial to Full Shade
Full Shade
Danger:
N/A
Bloom Color:
Pink
Light Blue
Medium Blue
Bloom Time:
Mid Spring
Foliage:
Herbaceous
Silver/Gray
Other details:
Requires consistently moist soil; do not let dry out between waterings
Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information:
Patented
Propagation Methods:
By dividing the rootball
Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
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