While choosing a spot to plant your Hydrangea make sure that it has enough room to spread out. They require very little pruning and prefer to grow wild. The color may be altered from a pink to a blue and with more difficulty blue to pink, by changing the pH of the soil. You should not attempt to change the color until they are at least two-three years old. You could also end up with as many as five different colors on one plant. The color cannot be changed on white Hydrangea.
Included in “Southern Gardens 101, Helpful Hints for the Beginner” you will find a variety of ways to dry the blooms. After drying the flowers for at least two weeks, you can change the color by dying them with “Ritz Dye” baths. The longer you submerge them under the dye bath, the deeper your color will be.