C. scabrum and bulbispermum-- planting depth and hardiness

Adam Fikso irisman@ameritech.net
Thu, 14 Sep 2006 11:14:12 PDT
 Hello. I have a bulbispermum and a scabrum that I wintered over, planted 
quite deep--base of the bulb about 14" below ground surface.  Sited about 
20" away from the foundation of the house.  Tip of the bulb was below the 
surface.  No mulch.  We had about three zero F°  days last year..  I don't 
know how   they  would do in a more normal winter e.g, at 15-20 °F  for a 
week or so.  I plan to find out. Tony Avent's criteria don't work for me 
here in 5a but they help.  Jim Waddick's criteria work better in Glenview, 
(Chicago suburb). 

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