Saxifraga federici-augusti subsp. grisebachii (7)
Grisebach's saxifrage
A cushion-forming, evergreen perennial with flat rosettes of lime-encrusted, oblong to lance shaped, silvery grey-green leaves and upright to arching reddish-pink stems bearing slender racemes of reddish-purple flowers in late Spring, early Summer
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Size
Ultimate height
0.1–0.5 metresTime to ultimate height
5–10 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Well–drainedpH
Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Grey Silver | |||
|---|---|---|---|---|
| Summer | Purple Red | Green Grey Silver | ||
| Autumn | Green Grey Silver | |||
| Winter | Green Grey Silver |
Position
- Full sun
- Partial shade
Aspect
North–facing or East–facing or South–facing
Exposure
Exposed or Sheltered Hardiness
H5Botanical details
- Family
- Saxifragaceae
- Native to GB / Ireland
- No
- Foliage
- Evergreen
- Habit
- Matforming, Clump forming
- Genus
Saxifraga can be annuals, biennials, evergreen or herbaceous perennials, mostly mat-forming in habit, with simple or palmately lobed leaves and starry or rounded flowers which may be solitary of in panicles or cymes
- Name status
Correct
- Horticultural Group
- Porphyrion section saxifrages are compact, cushion or mat-forming evergreen perennials with small, usually lime-encrusted leaves, and 5-petalled white, yellow or pink flowers in early summer
How to grow
Cultivation
Grow in moderately fertile, moist but very well drained, neutral to alkaline soil, preferably with afternoon shade. Prefers cool, moist Summers. Does not tolerate drought or hot, humid weather
Propagation
Propagate by division
Suggested planting locations and garden types
- Patio and container plants
- Rock garden
- Low Maintenance
Pruning
Remove spent flower stalks after flowering
Pests
May be susceptible to aphids, glasshouse red spider mite, slugs, vine weevil
Diseases
Generally disease-free
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