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 December
1997
 Sempervivum
species
November
1997
Allium
thunbergii
October
1997
Gentiana
scabra
September
1997
Sedum
cauticola
August
1997
Allium
senescens glaucum
July
1997
Delphinium
tatsienense
June
1997
Dianthus
gratianopolitanus
May
1997
Penstemon
rupicola
April
1997
Tulipa
tarda
March
1997
Iris
reticulata
 February
1997
Saxifraga
longifolia
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2003
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2002
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2001
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2000
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1999
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1998
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Plant
of the Month
February
1997
Saxifraga
longifolia
Saxifraga
longifolia, a native of the Pyrenees Mountains, is a
member of one the most important of genera for alpine
gardeners. A number of saxifrages absorb mineral-laden water
and expel the excess calcium salts to the edges of their
leaves, producing an encrusted effect.
Saxifraga
longifolia produces solitary foliage rosettes 6" (15
cm) across. Unlike most of its relatives it does not produce
offsets. It takes several years to bloom, producing a long
(~2' ,or 60 cm) and showy, branched panicle of a hundred or
more small white flowers, dying after producing its
seeds.
Encrusted
saxifrages of which S.
longifolia is a member cannot take full sun
despite their hard look. S.
longifolia is best planted in a vertical
crevice between two rocks in a shaded location.
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