Iris pseudacorus, the yellow flag, yellow iris, or water flag, is a species of flowering plant in the family Iridaceae. If you’re looking for an interesting, moisture-loving plant to add to the garden, consider planting flag iris. Both growing conditions and flag iris care are relatively easy undertakings that will reward you with beautiful blooms each year. These are very hardy perennial plants that survive with minimal care and generally bloom in the spring and early summer. They are most often found in wet, low-lying areas and are suitable for similar conditions in the home garden.
There are many varieties of flag irises, including dwarf and tall types. The most common types of flag iris plants familiar to most people include blue flag iris and yellow flag iris. Yellow Flag Iris – Yellow flag iris (Iris pseudacorus) is a perennial plant that is native to Europe, North Africa, Great Britain and the Mediterranean area. Yellow flag iris is prevalent all over North America, apart from the Rocky Mountains. Generally found along wetlands, streams, rivers or lakes in shallow mud or water, this hardy plant will also tolerate drier soil and high soil acidity. Gardeners often use this iris as an ornamental pond plant, and value the yellow flowers that bloom in the summer. However, it can quickly become invasive, and gardeners must beware of this in order to provide the most appropriate flag iris care.