Viewing post #2358308 by frederick11

Sscape said:Over time, Perlite absorbs minerals and can become toxic. Soil makers stopped using it, and to a lesser extent, Vemiculite, for that reason.

Damn.

I already had bad experiences with vermiculite in my potting mixes, as it created weird nutrient deficiencies.

I was hoping perlite would be different.

Can you please point me to the published facts ?

Sscape said:A great annual fertilizer for blueberry bushes is Espoma's Holly Tone. Not only is it a great fertilizer; it keeps the pH level down to the plant's liking.

Thanks for the tip !

I will check it up.