Plant guide

Bearded Iris.

Iris germanica

Pronounced EYE-ris jer-MAN-ih-kuh

Also known as Bearded Iris, German iris, flags

Bearded irises are classic garden favorites known for their striking, ruffled blooms and fuzzy petals. They thrive in sunny spots and bring a wonderful splash of color to your flower beds. These perennials are quite hardy and return year after year with proper care.

At a glance

Care level: Easy
Plant type: Perennial
Light: Full sun
Indoor light: Direct sun
Water: Every 7 to 14 days
Mature size: 2 to 4 feet
Growth rate: Medium

Care

Plant your rhizomes shallowly so the tops are barely covered by soil. Watch for mushy rhizomes which indicate rot from too much moisture. Keep the area around the base free of weeds to ensure good airflow.

Watering: Water deeply when the top inch of soil feels dry to the touch.
Feeding: Apply a low nitrogen fertilizer in early spring and again after blooming.
Pruning: Cut back flower stalks after they fade and trim foliage in late autumn.
Repotting: Divide the rhizomes every few years to prevent overcrowding and encourage better flowering.
Soil: Well draining sandy or loamy soil
Soil pH: 6.0 to 7.0

Safety

Pets: The rhizomes and leaves are toxic to cats and dogs if ingested.

How to identify it

Fuzzy beard on lower petals
Sword shaped green leaves
Large complex ruffled flowers
Thick fleshy rhizomes at soil surface

Science

Family: Iridaceae
Genus: Iris
Order: Asparagales
Class: Liliopsida

Taxonomy resolved against GBIF.

Also in

Plants toxic to cats and dogs

Is your bearded iris looking unwell?

This page is a general guide. Pocket Botanist diagnoses problems from a photo of your actual plant, works out watering for your light and conditions, and reminds you when care is due.

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This guide was generated with AI and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.