Rothesay Reveller is a dramatic formal decorative dahlia whose 4–6 inch blooms open in deep purple‑red and burgundy, each petal tipped in clean white that ranges from a fine edge to bold, high‑contrast variegation. This shifting bicolor pattern echoes the contrasting flashes seen on ocean‑phase pink salmon and Rainbow Trout — where dark, wine‑toned bodies catch sudden bright lavender or magenta highlights as they move through the water. As a Stable morph type, the bloom holds its core burgundy‑purple hue throughout the season, but light changes its emphasis: strong sun pulls the petals toward a brighter magenta‑red, while shade deepens them into a cooler, richer purple. Tall plants reach 3.5–5 feet and produce long, sturdy stems ideal for cutting, with blooms that range from nearly solid burgundy to strikingly two‑toned. Bold, theatrical, and endlessly variable in its reflectance, Rothesay Reveller brings a sense of movement and surprise to both the garden and the vase.

Salmon-Dahlia Atlas Zone: Zone 4 — Ocean Pink Zone 9 — Rainbow Trout Brights

Morph Type: Stable — deep burgundy‑purple base color remains consistent; sun emphasizes magenta tones while shade intensifies purple depth

FORM: Formal Decorative (often appearing ball‑like as inner petals curl)

BLOOM SIZE: Medium (4-6")

HEIGHT: Medium (3.5-5')