Madame Butterfly™ Yellow Antirrhinum

Madame Butterfly™ Yellow is an upright snapdragon with unusually full, double azalea-form flower spikes in yellow. [Syngenta identifies the exact color selection](https://www.syngentaflowers.com/ams/product/flower/70051896) as Antirrhinum majus F1 item 70051896 and lists it for late-spring and summer flowering and cut arrangements. ## Form and placement The ruffled flowers give a soft, dense look compared with the familiar open snapdragon form. Syngenta lists a garden height of 24–30 inches and width of 14–16 inches, recommends it for the back of borders, and notes its use for indoor floral arrangements. It works as a vertical accent in a sunny annual bed or a dedicated cutting row. ## Growing conditions Grow in full sun in moist, fertile soil that drains well; species guidance also allows partial shade. [NC State Extension describes snapdragons as short-lived tender perennials commonly grown as annuals](https://plants.ces.ncsu.edu/plants/antirrhinum-majus/common-name/common-snapdragon/); the exact flowering window depends on climate and production schedule. Keep the root zone from drying during active growth, and avoid overhead irrigation where practical. ## Maintenance Harvest stems as flowers open or remove faded spikes to encourage further flowering, as the [Royal Horticultural Society notes for the species](https://www.rhs.org.uk/plants/69565/antirrhinum-majus/details). Watch for rust and other leaf or stem diseases, and improve air movement by avoiding crowded, persistently wet foliage. Avoid treating this annual seed cultivar as a reliably winter-hardy perennial.