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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
Archive 2004
Archive
2003
Archive
2002
Archive
2001
Archive
2000
Archive
1999
Archive
1998
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Plant
of the Month
April
1997
Tulipa
tarda
by Iza Goroff
Tulipa
tarda, a native of the Tien
Shan Mountains, is one of the easiest and most rewarding of
the species tulips suitable for the rock garden. It requires
a well drained soil and some sun, but it is somewhat shade
tolerant. Unlike the hybrid tulips it is relatively
permanent and can seed itself around the rock garden, never
becoming invasive. It produces as many as four flowers to a
stem, rising as high as 6" (15 cm) , but usually
lower.
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