Re: hollyhocks

Thanks Janis, and another question about hollyhocks, are they invasive? mine
sure seem to be and because they grow so profusely its the one area I don't
water much, and they're popping up all over, but the blooms are abundant and
beautiful. so this rust must really be a common problem.

Doreen
>
>Hollyhocks are prone to rust.  There isn't a whole lot you can do, but it 
>does help to give them good air circulation.  So, leave space between and 
>around the plants.  Continue as you are to destroy the infected leaves.  At 
>the end of the growing season, cut down the plants and carefully dispose of 
>them to pevent fungal spores that would infect next year's plants.  
>
>Sulfur sprays, such as those made by Safer and Concern, can be effective and 
>safe, but to work they must be applied repeatedly starting a few weeks before 
>the symptoms appear.  You might want to try that next year.  
>
>Rust needs humidity to develop, so it is best not to use overhead watering on 
>hollyhocks and other susceptable plants.  
>
>Hope this helps, and good luck.  --Janis
>
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