[pbs] C. scabrum and bulbispermum-- planting depth and hardiness
Adam Fikso
irisman at ameritech.net
Thu Sep 14 14:14:12 EDT 2006
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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