Slender Blue Iris (Iris Prismatica) is a perennial herb in the Iridaceae family with easy care difficulty. It requires medium to high watering and full sun or partial shade light in USDA hardiness zones 4-8. This plant is toxic to cats and dogs — keep it out of reach of pets.
Iris prismatica is a perennial herbaceous plant known for its slender blue flowers and narrow leaf blades, native to marshes and shorelines.

Slender Blue Iris
Iris Prismatica
Iris prismatica is a perennial herbaceous plant known for its slender blue flowers and narrow leaf blades, native to marshes and shorelines.
Quick Facts
Safety
Growing Conditions
Care Calendar
Monthly care tasks for Slender Blue Iris
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...
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