Typically set out as spring annuals, common garden snapdragons (Antirrhinum majus) bloom from April to frost. Mild-climate gardeners can grow them as perennials in U.S. Department of Agriculture plant hardiness zones 9 through 11.

What month do snapdragons bloom?

Snapdragons grow as an annual in most locations, and will bloom from spring through fall with minimal care. Snapdragon seeds can be started indoors 6 to 8 weeks prior to your last frost date. This allows plants plenty of time to develop to bring on blooms much earlier in the growing season.

Do Antirrhinums flower every year?

Antirrhinums are cheerful annual plants, guaranteed to brighten up borders and containers.