Use of Roundup

Jane McGary
Thu, 01 Oct 2009 16:47:01 PDT
I have seen no ill effects from using Roundup over completely dormant 
bulbs. In fact, last year I had to get rid of a very invasive 
subshrub (Rosa sp.) and I used Crossbow on it over dormant bulbs with 
no apparent damage. However, before I sprayed the Crossbow, I covered 
the sites of the bulbs (colchicums, mostly) with a thick layer of 
bark mulch, which I later removed.

Jane McGary
Northwestern Oregon, USA

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