Linda from Salem, Or writes
At end of blooming last year some blooms were turning pinkish. My nursery recommend HI-YIELD aluminum sulfate in dry form which I bought but the package doesn't give me enough info. My plant is in a 14"pot with the hydrangea growing about 2'. How much without harming the plant is appropriate. The nursery also advised watering it in with Acid Loving, water soluble plant food 31-11-11. Your response would be appreciated.
Per the product label for Hi-Yield Aluminum Sulfate: Use 1 lb. per 3 ft. of height. Mix 1 lb. in 5 gallons of water and apply at the drip line of the Shrub. HI-YIELD ALUMINUM SULFATE can also be spread dry around the drip line and watered in. If you spread dry we would recommend you use 2/3 lb per 2 ft of height and then water in with sufficient water or you could use the mix of Ferti-Lome Acid Loving Water Soluble Plant Food 31-11-11 following the rates on its label.
Answer last updated on: 04/04/2017
