Linda2520
Hydrangea
Hydrangea color can be changed from pink to blue or blue to pink by rising and lowering the PH of the soil. On adds aluminum sulphate to bring the flowers to blue. Also adding organic matter to the soil helps the plant use the aluminum. To turn a plant pink is more difficult since the PH needs to be raised to help prevent the plant from taking up aluminum. Dolomitic lime can also be added to the soil for this purpose. This plant was a brilliant pink! apparently a hard color to achieve in Florida except in pots.
Hydrangea
Hydrangea color can be changed from pink to blue or blue to pink by rising and lowering the PH of the soil. On adds aluminum sulphate to bring the flowers to blue. Also adding organic matter to the soil helps the plant use the aluminum. To turn a plant pink is more difficult since the PH needs to be raised to help prevent the plant from taking up aluminum. Dolomitic lime can also be added to the soil for this purpose. This plant was a brilliant pink! apparently a hard color to achieve in Florida except in pots.