Re: Acidifying alkaline soil

That is my understanding as well.

dm


On 5/6/13 10:00 AM, "Bill Plummer" <remmulp@stny.rr.com> wrote:

>    I remembered reading years ago that high levels of aluminum was toxic to
> rhododendrons. I just checked David Leach's 'Rhododendrons of the World" and
> it confirmed my memory. Since Enkianthus is an ericaceous plant, I suspect
> it would be aluminum would be toxic to it as well. Sulfur is the safer
> choice.
> 
> Bill Plummer
> 
> ----- Original Message -----
> From: "Debby Williams" <williamsdeb@sbcglobal.net>
> To: <woodyplants@hort.net>
> Sent: Monday, May 06, 2013 12:56 AM
> Subject: RE: Acidifying alkaline soil
> 
> 
>> Years ago I used miracid on with some of my acidic soil loving  plants, so
>> I goggled it to see what current thought was on the  product and I found
>> this - refers to growing azaleas:
>> 
>> The fastest way to acidify the soil is to use aluminum sulfate  (drugstore
>> alum). Dissolve eight ounces of powdered alum in a gallon  of water and
>> pour it around your azalea. That will lower the pH by  one point.
>> 
>> From http://www.walterreeves.com/gardening-q-and-a/using-miracid-
>> fertilizer/
>> 
>> I think sulfur would last longer but then maybe use this as a  supplement
>> as the sulfur degrades.
>> 
>> Debby Williams
>> 
>> Chicago
>> 
>> 
>> 
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