What is Jenna's next step after wiring the existing stem of her rose for a boutonniere?

After wiring the existing stem of the rose for a boutonniere, the next logical step is to add floral tape. This is important because floral tape helps to secure the wire to the stem, providing stability and ensuring that the wiring does not damage the bloom. Additionally, floral tape is designed to be moisture-resistant, which helps maintain the freshness of the flower.

Using floral tape not only reinforces the structure of the boutonniere, but it also creates a cleaner, more polished look by covering any exposed wire, making the final product more aesthetically pleasing. This step is crucial in the preparation of a boutonniere, as it ultimately contributes to the overall durability and presentation of the flower arrangement. In contrast, cutting the stem, applying glue, or adding additional flowers are steps that may not be necessary immediately after wiring and may alter the design or structure intended for the boutonniere.