Robertsoniana Saxifrage
Saxifraga cuneifolia

Family: Saxifragaceae (saks-ih-frag-AY-see-ee) (Info)
Genus: Saxifraga (saks-if-FRAG-uh) (Info)
Species: cuneifolia (kew-nee-FOH-lee-uh) (Info)

Category:

Alpines and Rock Gardens

Perennials

Height:

under 6 in. (15 cm)

6-12 in. (15-30 cm)

Spacing:

15-18 in. (38-45 cm)

Hardiness:

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:

Sun to Partial Shade

Light Shade

Partial to Full Shade

Danger:

Unknown - Tell us

Bloom Color:

White/Near White

Bloom Time:

Late Spring/Early Summer

Foliage:

Evergreen

Dark/Black

Bronze-Green

Smooth-Textured

Leathery-Textured

Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

From seed; direct sow outdoors in fall

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

From seed; stratify if sowing indoors

Plant is viviparous

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

Gardeners' Notes:

2
positives
0
neutrals
0
negatives
RatingContent
Positive

On Jul 1, 2008, altagardener from Calgary, AB (Zone 3b) wrote:

According to W. Harding (Saxifrages: A Gardener's Guide to the Genus), Saxifraga cuneifolia is "widely distributed in the wooded, sub-alpine mountains of southern Europe, extending from the eastern Pyrenees to the Carpathians".

Positive

On Dec 7, 2004, Todd_Boland from St. John's, NL (Zone 5b) wrote:

There are 4 species and several hybrid saxifrages that fall under the Robertsoniana section. The most popular is S. X urbium 'London Pride'. Saxifraga cuneifolia is the smallest member with 1-2" rosettes of small, thick, wedge-shaped leaves which are deep green and often turn bronzy-purple in winter. They produce wiry stems to 8" tall and a loose spray of small, white starry flowers. Part to full shade in a humus-rich soil will keep them happy. It can be used as a groundcover, but is not as suited to this purpose as the other larger members of this group. Lovely plant for the shaded rockery. It is native throughout the mountains of southern Europe, growing as an understory plant in mixed forests.