Went out later in the day to finish the mulching and was pleasantly surprised to find all the other bales of straw that I used (one I did not use as it has the same green color of the thistle infested bale, and I did not need it) absolutely free of thistle. So I got the 11 asparagus beds I did not get in the morning all mulched and in some cases pulled out a lot of dandelion and clover. In another 3 to 4 weeks we out to start seeing spear.
I am relieved that most of the straw is clean and we will not be forced into buying not certified organic straw nor will have to use chemical herbicides to combat the weeds being brought in by seedy straw
It took me about 2 hours to weed and mulch 11 beds. It took me about an hour to mulch the first bed with thistle straw because I had to go over and over the mulch in the bed to get as much thistle as possible