Yellow Flag (Iris Pseudacorus) is a perennial aquatic in the Iridaceae family with easy care difficulty. It requires very high watering and full sun or partial shade light in USDA hardiness zones 4-9. This plant is toxic to cats and dogs — keep it out of reach of pets.
Iris pseudacorus is a robust, aquatic perennial known for its striking yellow flowers and sword-shaped leaves.
Yellow Flag
Iris Pseudacorus
Iris pseudacorus is a robust, aquatic perennial known for its striking yellow flowers and sword-shaped leaves.
Quick Facts
Safety
Growing Conditions
Care Calendar
Monthly care tasks for Yellow Flag
Expert Care Tips
Pro tips from botanists and plant experts
Watering Tip
Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.
Humidity Trick
Group plants together to create...
Growth Hack
Rotate your plant every...
Photo Gallery10+ photos
View leaf details, flowers, seeds & more in the app