New Grower outdoor ph help?

[Psilocybe]

When growing autos outdoors what is there to do when the grower has high alkaline rainwater. Should something be added into the soil? :dunno:

 

[namvet25]

If your soil ph is over 7 you could add some sulpher this might help.

 

[Psilocybe]

The rain water is averaging around 8.1.

 

[Muddy]

I have the same problem around here. Plus we run into extended rainy periods that make it very hard to feed the plants as the rain keeps them wet. I would suggest adding 4 grams of 17% aluminum sulfate per gallon of soil. It's faster acting that sulfur and should help to keep your pH in check.