How to create blue roses<br>Gather the necessary materials. To dye the petals through absorption, you will need powdered blue florist's dye, water, freshly cut white, scissors, dethorning tool (optional), a glass vase, and flower preservative (optional). Ideally, the roses will not have been soaked in or treated with water.
To create ideal blue roses you need to make sure the petal are not soaked with water.