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

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us

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:

Unknown - Tell us

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

Portland, Oregon

Gardeners' Notes:

3
positives
0
neutrals
0
negatives
RatingContent
Positive

On Jun 17, 2015, PattyH98 from Portland, OR (Zone 8b) wrote:

I have grown this plant for over ten years and it is still thriving here in my Pacific NW zone 8b garden, which rarely gets water during the dry summers here. In this region it blooms early-mid summer into fall.
I cut it back to shape it in early spring and to keep it a better size for the space I have it in.
After it blooms I shear it back for more blooms and to keep the plant looking tidier.
Recommend planting this plant in the front of the boarder for best show.
To date I have had no pests or diseases issues with it either.
A great low maintenance plant.

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.