Hydrangea macrophylla, also called bigleaf or French hydrangea, has either pink or blue flowers. Flower color is determined indirectly by the soil pH, which affects the availability of aluminum in...
Polyacrylamide (or PAM as it is also known) is marketed in many areas as a soil additive used to increase a soil’s water holding capacity. It is a synthetic compound that is typically sold as soft,...
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