PlantFiles is getting a new look! Just in time for spring, we're rolling out a new look for the best online plants database. It will also work with your smart phones and mobile devices, so now you can take it with you on garden center visits or botanical garden tours. Questions or comments? Please post them here.
Family: Caryophyllaceae (kar-ree-oh-fil-AY-see-ee) (Info)
Genus: Saponaria (sap-oh-NAIR-ee-uh) (Info)
Species: lutea (LOO-tee-uh) (Info)

Category:

Alpines and Rock Gardens

Perennials

Height:

6-12 in. (15-30 cm)

Spacing:

24-36 in. (60-90 cm)

Hardiness:

USDA Zone 6a: to -23.3 C (-10 F)

Sun Exposure:

Full Sun

Danger:

Seed is poisonous if ingested

Bloom Color:

Pale Yellow

Bloom Time:

Late Spring/Early Summer

Blooms repeatedly

Foliage:

Evergreen

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:

By dividing the rootball

From softwood cuttings

From seed; direct sow outdoors in fall

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

From seed; stratify if sowing indoors

From seed; sow indoors before last frost

Seed Collecting:

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

Properly cleaned, seed can be successfully stored

Gardeners' Notes:

1
positive
1
neutral
0
negatives
RatingContent
Neutral

On Oct 28, 2012, altagardener from Calgary, AB (Zone 3b) wrote:

CactusSpike,
You may be talking about some other Saponaria sp. but it's definitely not Saponaria lutea, which is a very small alpine Saponaria with pale white-yellow flowers.

Positive

On Jun 2, 2011, CactusSpike from Sydney
Australia wrote:

I tried this plant because it was amongst a bunch of cheap herbs I bought in bulk. I was pleasantly surprised by its hardiness & blooms. I wound up going back for more & now have them growing in a variety of positions. Some are in wet, sunny spots, others in dry, shaded situations. All seem to be going OK. The plant itself looks a bit like a semi-prostrate Catchfly or Gentian, with big, pink flowers. I believe it may be sometimes called Sweet William & was amongst the bouquet Princess Kate wore to her weddding.