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botanical name:
Saxifraga x polulacina 'River Thame'
Saxifraga x polulacina 'River Thame' © Deeproot Plant Base
synonyms:  Saxifraga 'River Thame'
family:  Saxifragaceae
characteristics: perennial, evergreen
height: 0.05m
width: 0.10m
growth rate: very slow
growth habit: mounding
leaf colour: grey-green
flower colour: lilac
main season: Spring
aspect: full sun
conditions: dry soil, moist soil
preferred soil pH: alkaline
minimum temp: -29°C
USDA zone: 5 to 8
description:
Small cushion-forming alpine with tight rosettes of tiny, lime encrusted, grey-green leaves. Lilac flowers, deepening to purple in the throats, in spring.


cultivation:
Very sharply drained alkaline or neutral soil in full sun. Avoid excessive winter wet. Can be grown in tufa.

propagation:
By separation of rosettes.

usage:
Suitable for alpine troughs, rock or scree gardens.

other notes:
Porphyrion section, Kabschia subsection saxifage. UK cultivar.
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