Blue Hydrangea Flower

Question: I had a blue hydrangea on the east side of my house, and last spring I moved it around to the west. It is pink around on that side of the house and I would like to know what to use to keep it blue. N.H., Tennessee.

Answer: The common French hydrangea depends for color on the presence of aluminum in the plant. In turn, the availability of this aluminum to the plant is directly influenced by the acidity of the soil. The soil on the east side of your house is more acid than on the west side. The soil may be acidified by the application of aluminum sulphate. Use about 2 ounces of aluminum sulphate to each square foot to be treated.

Related Articles

• Soil pH Testing for Your Soil - All plants need three major elements for proper growth. If your soil does not contain them in the right quantities, best growth is impossible. Nitrogen stimulates growth; phosphorus makes better flowers, fruits, seeds; potash aids the roots, stems, and stalks; counteracts brittle growth. It also intensifies the color and fragrance of flowers, and is greatly
• Flowering Plum the Free Growing Ornamental Tree - The Flowering Plum is a broad term used to refer to a range of plum trees that are both native and introduced and can be found growing in valleys and low slopes across the US. They can even be seen by the side of roads and fences, especially in those parts of North America where