[Cob] Wheat Straw Question

[fran]

My trench and foundation are complete for a small building
8 ft x 12 ft. I just began cobbing this weekend using local
clay and builder's sand with wheat straw. All were free -
The rock, gravel, clay, sand and wheat.   So far the only
money I've spent is for some concrete mortar.   In MS wheat
is not grown as a crop but rather as a cover crop along
with other crops like soybeans.  It's not harvested as
grain, but baled and provided to FFA groups for bedding for
animals.  The grain/seed head is still attached to the
stalks in the wheat I'm using.  I was fortunate to find a
source of wheat and it was given to me by the farmer.  So,
I am not complaining.

My question is - Will the wheat seeds become a problem in
the walls if I leave them in the cob mix?  I don't want
wheat sprouting next spring causing cracking in the walls. 
So I have been removing the heads and seeds, but it's
really slowing me down, since I am working alone. Making a
slow process a lot slower.   Someone on the list  have any
experience with this?  Other than that it's a lot of hard
work but fun.  The walls are setting up really fast and
very hard in this hot weather 100+ degrees.  If I could
just leave in the wheat it would give me more time to cob.


       
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