Cool Yellow Snapdragon

Cool Yellow is a yellow-flowered selection of *Antirrhinum majus* in PanAmerican Seed’s Cool F1 snapdragon series, developed for cut-flower production in cool-season conditions. Ball Seed’s [Cool Yellow profile](https://info.ballseed.com/PlantInfo/?phid=057803347006060) identifies the exact product and lists upright stems 39–60 inches long; PanAmerican’s [current catalog](https://catalog.panamseed.com/view/445948364/191/) lists Cool Yellow in the Cool Series for greenhouse or high-tunnel cultivation. ## Production and flowering The breeder places Cool in flowering groups 1–2 and lists early-spring, autumn, and winter flowering. Cool snapdragons are described as most uniform and dependable during cool-month production, though timing outdoors depends on climate and planting date. The listed 39–60 inch stem length is a commercial cut-flower measure. ## Siting Use a sunny greenhouse, high tunnel, or suitable cool-season field site. Production guidance calls for short daylength, low light intensity, and cool temperatures; this is a commercial cut-flower schedule rather than a general garden hardiness recommendation. ## Maintenance For long, straight stems, the [PanAmerican production guide](https://www.panamseed.com/documents/catalogs/17196_PIG_ENG_LR.pdf) recommends at least two support nets, preferably three, raising the upper net as stems lengthen. Keep harvested stems vertical during handling and storage, following the breeder’s post-harvest guidance.