Gladiolus from seed; and cold hardiness of some Glads

J.E. Shields
Mon, 12 Aug 2002 06:32:12 PDT
I have grown and bloomed Gladiolus oppositiflorus salmoneus from 
seed.  Planted in 1998, some of the corms produced first blooms in 2001.

Some of those corms were planted outdoors in 2001.  the winter of 2001-2002 
was very wet but not terribly cold (lowest temperatures +03 to +06 F, about 
-14 to -16 C).  None of them survived in the ground.  Corms kept indoors 
and repotted in Spring 2002 in the greenhouse have not yet bloomed this year.

G. dalenii primulinus planted outdoors in the rock garden in 2001 did not 
survive the winter of 2001-2002.  G. x-gandavensis planted outdoors in the 
ground in November, 1999, continue to survive.  They bloomed in 2000 and in 
2001, but were badly damaged by the winter of 2001-2002 and show no signs 
of blooming so far this year.  I have only obtained one viable seed from 
x-gandavensis to date.  It is still too small to flower.

Jim Shields
in central Indiana

Jim Shields             USDA Zone 5             Shields Gardens, Ltd.
P.O. Box 92              WWW:
Westfield, Indiana 46074, USA                   Tel. +1-317-896-3925

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