Joan™ White Chrysanthemum

Joan™ White is a Syngenta garden mum with decorative white flowers and a late-season flowering response. Syngenta’s Garden Mum Supplement places it among late varieties, making it useful for extending an autumn display after earlier mums have peaked. ## Landscape Use Plant it in a seasonal border, massed bed, or patio container for a clear white accent among fall colors. Garden mums also suit cutting gardens and can be grouped with grasses or foliage plants for contrasting texture. The [NC State Extension profile](https://plants.ces.ncsu.edu/plants/chrysanthemum-x-morifolium/common-name/mum/) describes these uses and notes that flower form and color vary widely among cultivars. ## Siting Choose a sunny position with fertile, well-drained soil. Garden-mum dimensions and winter survival vary by variety and local conditions; Syngenta’s accessed Joan material did not provide a cultivar-specific mature-size range or USDA hardiness rating, so those values remain unset. ## Maintenance Water when soil begins to dry during active growth, avoiding saturated ground. Pinch soft tips earlier in the season to encourage branching, then stop by mid-summer to allow flower buds to form. Remove spent blooms and monitor for aphids, mites, rust, leaf spots, and powdery mildew. See [Virginia Cooperative Extension’s garden-mum guide](https://www.pubs.ext.vt.edu/content/pubs_ext_vt_edu/en/426/426-016/426-016.html) for further care.