Re: CULT: Weed control, sad tale, advice?

Does this work to control grasses as well?  Last year in desperation 
to get ahead of the weeds I hand brushed and carefully (i THOUGHT) 
sprayed the weeds in my iris rows with Roundup. When bloom time came 
two robust varieties had been affected. One bloomed very weakly and 
the other tried but produced no falls.

The weeds are terrifically healthy again this spring. The three worst 
are creeping charlie and two grasses, one clumping and one with 
stolens. (or rhizomes? -- I'm uncertain of the difference)

Some of my iris clumps are very intertwined with grasses. Would first 
lifting those clumps of iris without much leaf showing yet, then 
weeding and replacing the iris be the best for them in the long run? 
The clay soil becomes quite hard in the Fall.

Reading the archives, newspaper pages at least six deep, covered by 
chips or bricks was said to be effective. Isn't this best used 
against 'side dwellers'?

Iris-talk has had several very informative posts. This is my first 
posting. I hope it is a topic some of you will be interested in. I am 
interested in learning how others control their weeds. Tools? 
Products? Methods? These southern Indiana weeds seem to be growing 
healthier every day!  -Rosemary Hart
 
--- In iris-talk@y..., "Mike Sutton" <suttons@l...> wrote:
> For anyone who is interested we have just finished a weed control 
test.  Using 1.5 pounds of Ammonium Sulfate (a common fertilizer) to 
1 gallon of warm water.  The solution killed all weeds sprouts under 
1" tall and severly burned weeds between 1" and 2".  Established iris 
were not affected.  Bloom season will tell if the flowers were 
affected.  (highly doubt it).  Nice alternative to weed killers. 
> Mike Sutton
> Porterville, CA USA
> USDA zone 8b 



 

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