PatArizona

Mushashi...

R/O water...I've not used it, but I know a few folks who do, and they like it.

Further, I agree...you may need iron.

I’ve been using Dyna-Grow products since 1989, and they work well for me…with my fast draining soil…here in the Arizona High Desert…

Look at the web sight for Dyna-Grow - http://www.dyna-gro.com/. It will tell you a lot more about their products. DynaGro is located in Emeryville or San Pablo.

For some time I’ve used these products individually, and just recently started combining them (per manufacturer advice), with good results (no controlled study, though).

The Products, Solution (mixing):

Dyna-Gro Products
KLN Liquid Rooting Concentrate
GROW Liquid Plant Food (with 11 or more micros, including iron)
Pro-TeKt Liquid Silicon Solution (From the label: never combine concentrates…dilute with water before mixing with KLN and Grow)

Per gallon of water…
1 teaspoon KLN
1 teaspoon GROW
½ teaspoon Pro-TeKt

Set aside 1-2 cupsof water from the gallon.
Combine KLN and GROW with the water (gallon), mix…
Combine Prt-TeKt with the 1-2 cups of water, mix…
Combine the two solutions, mix well

Hope you can use this info.

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BONSAI isn't about surviving in a storm, rather, how to dance in the rain.
THE ONLY WAY: Always remember, and don't ever forget, that whatever you read here is not cast in concrete... the intent of any advice is to help. In no way should you feel that I’m saying that my way is the only way…heaven forbid! I've seen far too much of the "my way or the highway" attitude in bonsai as well as in other areas of life.