Early Potomac™ White Snapdragon

Early Potomac™ White is a white-flowered *Antirrhinum majus* selection for professional cut-flower production. PanAmerican Seed’s [exact PAS3456 product page](https://www.panamseed.com/products/057801176005902/snapdragon-early-potomac-white/) identifies the selection, upright habit, sun exposure, 39–60 inch stem length, Group 3 classification, and greenhouse or high-tunnel use. ## Production and flowering The breeder recommends this cultivar for spring and autumn programs under medium-to-long days and moderate-to-high light. Its listed flowering season runs from late spring through late summer. The product page gives a 10–12 inch width, a useful spacing reference for cut-stem production. ## Siting Use a sunny site and follow the breeder’s production guidance for crop timing. Greenhouse and high-tunnel production are explicitly recommended; garden results and flowering dates vary with climate and management. ## Maintenance The [PanAmerican production guide](https://www.panamseed.com/documents/catalogs/17196_PIG_ENG_LR.pdf) recommends a minimum of two support nets, preferably three, and raising the upper net as stems elongate. These supports help keep long cut stems upright during production.