In what context are Greening Pins primarily used?

Greening Pins are primarily used to secure moss into floral foam. In floral arrangements, particularly when creating designs that incorporate moss, these pins help hold the moss in place, ensuring it stays anchored and adds to the overall aesthetic of the arrangement. This use is crucial as it maintains the visual appeal and structural integrity of the floral design, preventing the moss from shifting or becoming dislodged over time.

The other options, while relevant to floral work, do not accurately describe the primary function of Greening Pins. Holding flower stems together and tying bouquets often involves other tools or materials like floral tape or wire, which are designed specifically for those purposes. Creating decorative accents may use various embellishments or adhesives, but does not typically involve Greening Pins. Thus, the specific role of securing moss to floral foam is the distinguishing characteristic that identifies the primary use of Greening Pins in floriculture.