The NPK of Miracle-Gro Rose Food is 18-24-16.
Miracle-Gro Rose Food is best applied when rain is not expected within 24 hours of application.
Miracle-Gro Rose Food is only for use on rose or flowers not on blueberry plants. Ferti-Lome Acid Loving Water Soluble Plant Food 31-11-11 is a better option to use on them depending on the nutrients they need.
Yes, you can use Miracle-Gro Rose Food on indoor or outdoor roses, although the application rates will be different. For indoor plants, you would use 1/2 teaspoon per gallon of water every two weeks. Please refer to the product label for complete application instructions.