Potomac™ Ivory White Snapdragon

Potomac™ Ivory White is an upright snapdragon bred by PanAmerican Seed for cut-flower production. The breeder identifies PAS3497, describes ivory flowers with a yellow center, and reports 39–60-inch stem lengths. ## Flowering and cutting The [exact PanAmerican cultivar profile](https://www.panamseed.com/Products/057801176002594/snapdragon-potomac-ivory-white/) lists late spring, summer, and late summer flowering and recommends greenhouse or high-tunnel production. Potomac crops perform best in high light, long days, and warm conditions; the published 39–60-inch figure is stem length, not a garden spread estimate. ## Siting and soil The breeder lists sun exposure and upright habit. For snapdragons generally, [NC State Extension](https://plants.ces.ncsu.edu/plants/antirrhinum-majus/common-name/common-snapdragon/) recommends full sun to part shade and moist, rich, well-drained soil. It notes low drought tolerance and reduced performance in summer heat; these are species-level observations rather than cultivar-specific limits. ## Maintenance Water near the soil line and avoid overhead irrigation. Stake tall plants where needed and watch for rust and other leaf diseases in humid weather.