Guelder Rose – Viburnum opulus or V. spp. Share this:Click to share on Pinterest (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window) Designed with love! Our Grower's Choice Subscription freshly picked and delivered to your door every month. Shop Now Common Name: Snowball Viburnum, Guelder Rose Botanical Name: Viburnum opulus or V. spp., vy-BER-num OP-u-lus Decorative Life: 5-10 days. Flower Color: White Availability: Spring, Winter Storage Specifics: From 36-41 F, but can be held up to 7 days at 30-32 F with loss of fragrance. Tidbits: More commonly known as a landscape plant. The American Academy of Allergy, Asthma and Immunology lists this species as an allergy-safe pollen producing plant.