Potomac™ Royal Snapdragon

Potomac™ Royal is an F1 snapdragon in [PanAmerican Seed](https://www.panamseed.com/Products/057801176004760/snapdragon-potomac-royal/)’s Potomac cut-flower series, bred for strong upright stems and long flowering spikes. It is suited to cutting rows, high tunnels, greenhouses, and sunny mixed borders that benefit from a tall seasonal accent. ## Landscape Use PanAmerican Seed identifies the exact cultivar as PAS1237592 and lists it as a Group 3/4 cut-flower snapdragon with 39–60-inch stems. The breeder recommends the Potomac series for high-light, long-day, warm-temperature production and notes that year-round greenhouse crops can be grown with supplemental high-intensity lighting. [Harris Seeds](https://www.harrisseeds.com/collections/untreated-flowers/products/20638-snapdragon-potomac-royal) lists Royal as a tall focal bloom with a 40–60-inch height and 10–14-inch spread. ## Flowering and Siting The breeder gives late spring, summer, and late summer as flowering periods, and describes the plant habit as upright. Color descriptions conflict: Harris Seeds calls it royal purple, while [Johnny’s](https://www.johnnyseeds.com/flowers/snapdragon/warm-season-groups-3-4/potomac-royal-pelleted-f1-snapdragon-seed-1950P.html) Selected Seeds describes its Potomac Royal F1 as deep rose. Treat the bloom as a rich purple-to-rose hue until flower color is confirmed for the seed lot. For species-level siting, [Illinois Extension](https://extension.illinois.edu/flowers/snapdragon) recommends full sun to light shade and moist, well-drained soil; it notes that snapdragons favor cooler parts of the year. ## Maintenance Keep the root zone evenly moist without allowing waterlogged soil. Remove spent flower spikes to encourage rebloom. Tall stems may need staking in exposed locations, particularly where wind or heavy rain could bend them.