when do irises bloom

Irises typically begin blooming in early spring, with some varieties starting as early as late March or early April. The bloom period for many types, such as bearded irises, lasts about two weeks, with different varieties blooming at slightly different times from late March through early June depending on the climate and specific iris type. Some irises can even rebloom later in the summer or fall under favorable conditions. Early bloomers include smaller bearded irises, like dwarf varieties, which can start in March or April. Tall bearded irises commonly bloom in late April through early June. Other groups, such as Siberian and Japanese irises, bloom from mid-spring to early summer. Reblooming irises can extend flowering into summer and fall, but their repeat blooming depends on soil quality, climate, and care. For best bloom results, irises need full sun, good drainage, and quality soil. Bloom times vary by region and weather conditions, so planting a mix of early, mid, and late bloomers can extend the flowering season from spring into summer.