February 8, 2023
Iris pseudacorus

Iris pseudacorus Yellow Flag

Iris pseudacorus is part of the Iridaceae family of plants. This plant is native to Europe, Western Asia, and Northwest Africa. Iris pseudacorus is also called Yellow Flag, Water Flag, Yellow Iris, Daggers, Flagon, Jacob’s Sword, Water Skeg, Yellow Fleur-de-lis. It is a herbaceous perennial plant. It prefers wet conditions. In nature, it is usually found in wetlands.

Iris pseudacorus propagates through rhizomes as well as seeds to establish itself. It flowers in the summer. Flowers are yellow. They have 3 large fall petals and 3 erect ones. Its Latin name “pseudacorus” means “false Acorus” which refers to another plant. Iris pseudacorus leaves are very similar however not related at all. Yellow Flag Iris grows to about 1.5m or 5ft. After flowering, it produces pods containing brown seeds. The flower is attractive to bees.

Iris pseudacorus
Iris pseudacorus Yellow Flag

How to grow Iris pseudacorus:

Grow Iris pseudacorus in the sun or partial shade. Plant it in wet humus-rich soil. It prefers more acidic soil. It is perfect in any aquatic landscape. But it also tolerates dryness as well.

Propagate by division. The best time to do this is after flowering in summer or in autumn. Iris pseudacorus requires no pruning. Trim dying foliage or spent flower stems. Watch out for snails, slugs, thrips, aphid borne viruses, bacterial rot or Botrytis.

Iris pseudacorus plant is used for water treatment as it absorbs heavy metals.

Iris pseudacorus
Iris pseudacorus or Yellow Flag

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