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Bearded Iris

Bearded Iris in a refined chateau garden setting

Les Jardins d’un ChatelainThe Gardens of a Chatelain
Encyclopediaplante à bulbeIridaceae

Bearded Iris

Iris germanica

A sun-loving perennial with exposed rhizomes, elegant in dry edges and spectacular in spring.

Checked by the editorial team – Updated July 2026

Bearded Iris in a refined chateau garden setting

Bearded Iris (Iris germanica) is a plante à bulbe in the Iridaceae family. It is mainly grown in partial shade, shade, sun, in moist, Humide, humus-rich, Lourd soil, with a mature size around 0,15 m to 1 m. Its yellow, orange, red, violet flowering and hardiness to -29 deg C make it a plant to match carefully with place and purpose.

Botanical identity card

Botanical identity card

Iris germanicaIn-house reference record

Exposurepartial shade, shade, sun

Soilmoist, Humide, humus-rich, Lourd, neutral

Hardiness-29 deg C

Mature height0,15 m to 1 m

Spread0,5 m to 1 m

Floweringyellow, orange, red, violetMay, June

Foliagedeciduous

Planting distance0.50 m

Garden usesshrub habit, container, bushy, specimen, border
Gardener calendar

Gardener calendar

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Planting
Flowering
Leaf season
Care
best period possible depending on climate
The Chatelain’s Eye

With bearded iris, refinement is not rarity but accuracy: the right place first, then the quiet gesture. For shrub habit, container, bushy, a well-trained plant is worth more than a forced one.

– Les Jardins d’un Chatelain

Portrait

Portrait

A sun-loving perennial with exposed rhizomes, elegant in dry edges and spectacular in spring.

In a character garden, bearded iris is first used to build a scene: shrub habit, container, bushy, specimen, border. The position should be chosen before purchase, because the plant performs better when light, soil and mature size agree.

The reference record points to partial shade, shade, sun and moist, Humide, humus-rich, Lourd soil. Respecting that match is the quiet economy of good gardening: fewer corrections, less water and cleaner pruning.

Notable varieties

Notable varieties

Variety or form Useful character Garden situation
Iris germanica ‘Accent Variegata’ yellow, orange, red – Arbustif,Buissonnant,Etalé – 0,5 m to 1 m shrub habit, container, bushy
Iris germanica ‘Ambroise’ violet – Arbustif,Buissonnant,Etalé – 0,5 m to 1 m shrub habit, container, bushy
Iris germanica ‘Amethyst Flame’ violet – Arbustif,Buissonnant,Etalé – 0,5 m to 1 m shrub habit, container, bushy
Iris germanica ‘Antique Ivory’ white, yellow – Arbustif,Buissonnant,Etalé – 0,5 m to 1 m shrub habit, container, bushy
Iris germanica ‘Arpège’ white, blue – Arbustif,Buissonnant,Etalé – 0,5 m to 1 m shrub habit, container, bushy
Iris germanica ‘Autumn Circus’ white, blue – Arbustif,Buissonnant,Etalé – 0,5 m to 1 m shrub habit, container, bushy
The Chatelain Method

The Chatelain Method

01 – Observe

Observe

Keep the rhizome just exposed to sun.

02 – Diagnose

Diagnose

Few flowers mean buried rhizomes or an old clump.

03 – Correct

Correct

Divide after flowering and replant with space.

04 – Prevent

Prevent

Avoid wet mulch over the rhizome.

Frequently asked questions

Frequently asked questions

When should Bearded Iris be planted?

Use the calendar above as the first guide. Outside frost, heatwaves and waterlogged soil, planting works best while the ground is cool and workable.

Which exposure is best?

Bearded Iris prefers partial shade, shade, sun. In hot climates, shelter from the harshest sun reduces stress.

What soil does it need?

The reference data points to moist, Humide, humus-rich, Lourd soil. Improve the planting hole before planting rather than correcting later.

Is Bearded Iris hardy?

Available data indicates hardiness down to -29 deg C, to be adjusted for wind, winter wet and plant age.

Sources and further reading

Sources and further reading

Written and checked by the editorial team of Les Jardins d’un ChatelainLes Jardins d’un Chatelain – The Gardens of a Chatelain