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PlantFiles: Pygmy Saxifrage
Saxifraga rivularis

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Family: Saxifragaceae (saks-ih-frag-AY-see-ee) (Info)
Genus: Saxifraga (saks-if-FRAG-uh) (Info)
Species: rivularis (riv-yoo-LAIR-iss) (Info)

Category:
Alpines and Rock Gardens
Perennials

Height:
under 6 in. (15 cm)

Spacing:
Unknown - Tell us

Hardiness:
USDA Zone 2a: to -45.5 C (-50 F)
USDA Zone 2b: to -42.7 C (-45 F)
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
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)

Sun Exposure:
Sun to Partial Shade
Light Shade
Partial to Full Shade

Danger:
Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Mid Summer

Foliage:
Herbaceous

Other details:
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens

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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to view:

By Grasmussen
Thumbnail #1 of Saxifraga rivularis by Grasmussen

By Grasmussen
Thumbnail #2 of Saxifraga rivularis by Grasmussen

By altagardener
Thumbnail #3 of Saxifraga rivularis by altagardener

By altagardener
Thumbnail #4 of Saxifraga rivularis by altagardener

Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral Grasmussen On Aug 3, 2007, Grasmussen from Anchorage, AK (Zone 4a) wrote:

In many arctic-alpine plant groups, reticulate* evolutionary histories have resulted in problems with species delimitation and phylogenetic reconstruction. In the Saxifraga rivularis complex, the number of species accepted ranges from a single polymorphic one to several. The preceding statement is paraphrased from the introduction to the article: Taxonomy and Evolutionary Relationships in the Saxifraga rivularis Complex, published in Systematic Botany, Volume 31, Issue 4 (October 2006)

* An intertwining network evolution, where evolutionary changes are passed on by a random network resulting in numerous differences between isolated populations.

Regional...

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

Anchorage, Alaska



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