Large-Flowered Magnolia – Magnolia grandiflora 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: Magnolia, Large-Flowered Magnolia Botanical Name: Magnolia grandiflora, mag-NOL-ee-a grand-i-FLOR-a Decorative Life: 5-7 days Flower Color: White Availability: Spring, Winter, Year Round Harvest Instructions: Flowers should be harvested in the bud stage. Storage Specifics: 36-41 F in water. Tidbits: Named for Pierre Magnol (1638-1715), French professor of botany and physician to Louis XIV and director of Montpellier Botanic Gardens, France. The specific epithet name grandiflora means large-flowered. Leaves are often colored rusty brown on the underside.