Red Lungwort, Bethlehem Sage, Christmas Cowslip
Pulmonaria rubra

Family: Boraginaceae
Genus: Pulmonaria (pul-muh-NARE-ee-ah) (Info)
Species: rubra (ROO-bruh) (Info)

Category:

Perennials

Height:

12-18 in. (30-45 cm)

Spacing:

15-18 in. (38-45 cm)

Hardiness:

USDA Zone 4a: to -34.4 C (-30 F)

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)

USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:

Light Shade

Partial to Full Shade

Danger:

N/A

Bloom Color:

Red

Coral/Apricot

Bloom Time:

Late Winter/Early Spring

Mid Spring

Foliage:

Grown for foliage

Herbaceous

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:

Non-patented

Propagation Methods:

By dividing the rootball

Seed Collecting:

Bag seedheads to capture ripening seed

Allow pods to dry on plant; break open to collect seeds

Regional

This plant has been said to grow in the following regions:

Minneapolis, Minnesota

Lexington, Virginia

Gardeners' Notes:

0
positives
2
neutrals
0
negatives
RatingContent
Neutral

On Mar 14, 2006, Malus2006 from Coon Rapids, MN (Zone 4a) wrote:

This is one of the most aggressive Lungwort, capable of covering large areas with its green foliage. Blooms tend to be red, maybe a bit purple in it. One of my patches crashed hard after a strange winter with little snow cover and really cold temperatures but recovered from maybe root remains and seedlings. Flowering tend to be a bit on the shy side, as not all plants send up blooming stalks. They need to be handled by gloves as the foliage is rough. They self sow rapidly, and grows to mature size rapidly, so you have to keep a eye out for seedlings. Grows in sandy soil in woodland shade.

Neutral

On Aug 18, 2001, Terry from Murfreesboro, TN (Zone 7a) wrote:

P. rubra is a bit different from other pulmonarias. The foliage is typically not spotted, although some varieties do sport variegated foliage. The leaves are somewhat larger than other species, and the flowers remain the same color (usually pink, salmon or red), unlike most pulmonarias, which change from pink to blue, lavender or white.