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Double White Soapwort, Bouncing Bet, Goodbye Summer 'Alba Plena'

Saponaria officinalis

Family: Caryophyllaceae (kar-ree-oh-fil-AY-see-ee) (Info)
Genus: Saponaria (sap-oh-NAIR-ee-uh) (Info)
Species: officinalis (oh-fiss-ih-NAH-liss) (Info)
Cultivar: Alba Plena



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us


18-24 in. (45-60 cm)


9-12 in. (22-30 cm)


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)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:

Full Sun


Unknown - Tell us

Bloom Color:

White/Near White

Bloom Time:

Late Spring/Early Summer



Other details:

May be a noxious weed or invasive

Soil pH requirements:

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

From softwood cuttings

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; stratify if sowing indoors

Seed Collecting:

Unknown - Tell us


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

Grayslake, Illinois

Hoffman Estates, Illinois

Baker City, Oregon

Chattanooga, Tennessee

Leesburg, Virginia

Gardeners' Notes:


On Nov 26, 2011, DonnaMack from Elgin, IL (Zone 5a) wrote:

I absolutely love this plant. I bought 4 from Glenn Varner of Flower Scent Gardens the year before he closed his busness. It tends to start spreading rather aggressively after the secong year, but it is easily controlled if you take a sharp shovel and push it into the perimeter. It is GORGEOUS, and the scent is soft and sweet. I took clumps of it to my new house.

This is NOT a plant for the plant it ignore it gardener!


On Jun 27, 2009, MaryE from Baker City, OR (Zone 5b) wrote:

This plant, mostly in pale lavender, white and pink variations was growing here when we bought the place. I have pulled and dug mountains of it and still have too much. It is a real survivor, and I will never be rid of the roots. I can only try to control the tops. It is pretty when it blooms, hardy, stubborn, and makes a great addition to the compost pile.
Overall, it has more negatives than positives in my garden. Container growing might be more practical for this plant, or try growing it where nothing else will survive.


On Aug 27, 2004, DEE1653 from Tinley Park, IL wrote:

Very fragrant, clump forming, easy to remove it need be to keep in place. Wondering if anyone has a picture of this flower to place on this website.