Giant flowered Soapwort
Saponaria x lempergii 'Max Frei'

Family: Caryophyllaceae (kar-ree-oh-fil-AY-see-ee) (Info)
Genus: Saponaria (sap-oh-NAIR-ee-uh) (Info)
Species: x lempergii
Cultivar: Max Frei

Category:

Alpines and Rock Gardens

Perennials

Height:

6-12 in. (15-30 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:

Full Sun

Sun to Partial Shade

Danger:

Unknown - Tell us

Bloom Color:

Pink

Bloom Time:

Late Summer/Early Fall

Foliage:

Herbaceous

Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Non-patented

Propagation Methods:

Unknown - Tell us

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Regional

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

Roslindale, Massachusetts

Enid, Oklahoma

Gardeners' Notes:

2
positives
0
neutrals
0
negatives
RatingContent
Positive

On Mar 12, 2015, coriaceous from ROSLINDALE, MA wrote:

Very showy flowers, with an exceptionally long season of bloom, from June till frost. The flowers are no larger than those of other soapwort species. Plants can be short-lived---excellent drainage is essential.

Sterile, can be propagated by rooting cuttings. The woody rootstock is difficult to divide.

This is a hybrid between S. cypria and S. sicula var intermedia (aka S. haussknechtii) made in mid-twentieth century Austria by Fritz Lemberg. 'Max Frei' is the only cultivar.

Positive

On Aug 21, 2004, pokerboy from Canberra
Australia (Zone 8b) wrote:

Very pretty flowering perennial. Likes full sun and well-drained soil. Very pretty white of pink flowers in Summer. pokerboy.