It is often recommended online or by nurseries to apply aluminum sulfate to plants like blueberries, rhododendrons, azaleas and to hydrangeas to make the flowers blue. Is this advice I should follow? ...
I have some "Low nutrient NPK compound fertilizer" which is sold as Citrus Food left over from a Calamondin tree which has sadly passed away. Can I use this fertilizer on my herbs? They are basil, ...