Photo by Melody

PlantFiles: Rockfoil, Mossy Saxifrage
Saxifraga x arendsii 'Purple Robe'

Family: Saxifragaceae (saks-ih-frag-AY-see-ee) (Info)
Genus: Saxifraga (saks-if-FRAG-uh) (Info)
Species: x arendsii (ar-END-see-eye) (Info)
Cultivar: Purple Robe

One vendor has this plant for sale.

6 members have or want this plant for trade.

Alpines and Rock Gardens

6-12 in. (15-30 cm)

6-9 in. (15-22 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)

Sun Exposure:
Sun to Partial Shade

Unknown - Tell us

Bloom Color:

Bloom Time:
Mid Spring


Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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By Weezingreens
Thumbnail #1 of Saxifraga x arendsii by Weezingreens

By Weezingreens
Thumbnail #2 of Saxifraga x arendsii by Weezingreens

By Weezingreens
Thumbnail #3 of Saxifraga x arendsii by Weezingreens

By Weezingreens
Thumbnail #4 of Saxifraga x arendsii by Weezingreens

By mystic
Thumbnail #5 of Saxifraga x arendsii by mystic

By carolann
Thumbnail #6 of Saxifraga x arendsii by carolann

By PudgyMudpies
Thumbnail #7 of Saxifraga x arendsii by PudgyMudpies

There are a total of 12 photos.
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2 positives
No neutrals
1 negative

Gardeners' Notes:

Negative Godsnewine On Jun 16, 2012, Godsnewine from Lawrence, KS wrote:

I live in NE KS and purchased several of these plants this Spring. They are lovley and I had such great expectations for them as some were planted around a newly constructed stone patch and three were planted in a cluster with Helleborus at the feet of roses and clematis vines. They performed well for weeks in well drained soil but started turning dark black brown in small patches and now it would appear that around the pathway there are nothing but dark patches where once a carpet of lush green cushions once sit and smiled. The flower bed is doing the same thing but at a slower pace. I am so disappointed in the loss of so many that says they required full sun of which the flower bed does not get the extreme sun in the mid to late afternoons. The plants around the walking path gets late morning through afternoon sun. They were watered along with all other newly planted plants which are doing well. :(

Positive floating_stump On Sep 3, 2009, floating_stump from Grafton, WI wrote:

Mine gets morning sun and afternoon shade. Most tips say to keep it moist but well drained. I don't think my soil is particularly well-drained. I don't go out of my way to water it, but I don't think it every really dries out. It seems happy. It's a spreading, rubbery green mound. The flowers aren't exactly thick, but there are a lot, and it blooms for several weeks in early summer, here in Wisconsin.

I like it, for its own sake, but I can't figure out what to do with it, in a visual sense.

Positive Weezingreens On Aug 31, 2002, Weezingreens from Seward, AK (Zone 3b) wrote:

Purple Robe Saxifrag grows well in our SouthCentral Alaska climate. It is an excellent rockgarden plant because the foliage forms a soft mat of celery green, and the flowers are suspended on long thin stems that may rise upward, or curl about the plant. This plant does not like hot, dry conditions.


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

Juneau, Alaska
Waterford, California
Ewing, Kentucky
Ann Arbor, Michigan
Blissfield, Michigan
Dearborn Heights, Michigan
Albertville, Minnesota
Auburn, New Hampshire
Bloomfield, New Mexico
Lima, Ohio
Salt Lake City, Utah
Kalama, Washington
Grafton, Wisconsin

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