Species

Iris sibiricaSiberian Iris

26 other cultivars

perennial

June Krauss Siberian Iris

Iris sibirica 'June Krauss'

The Story

Plant Bio

Iris sibirica 'June Krauss' is a perennial plant known for its elegant blue flowers and lush green foliage. It is well-suited for moist areas and can tolerate wet conditions.

This cultivar is notable for its exceptionally vibrant blue flowers and resilience in various soil types, particularly clay.

Uses & Benefits:

Irises provide striking blue flowers that add elegance to borders and rock gardens, thriving in full sun and well-drained soil.

Their hardy nature and minimal maintenance make them reliable perennials for low-effort gardens.

Attract pollinators such as bees and butterflies, supporting local biodiversity.

SpeciesIris sibiricaSiberian Iris

Essentials

At a Glance

Plant Type

Perennial

Height

24 inches

Width

18 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

Central and Eastern Europe, Turkey

Toxicity

Slightly toxic if ingested

Bloom period

Early summer – Late summer

In flower about 3 months of the year

Planting

How to Grow

Tuck seeds into well-draining soil in early fall.
Water regularly to keep soil moist but not waterlogged.
Place in full sun for optimal blooming.
Divide clumps every 3-4 years in late summer to maintain health.
Mulch around plants to conserve moisture and suppress weeds.
Remove dead foliage in late fall to prepare for winter.

Pro Tip

Ensure excellent drainage to prevent rhizome rot and promote healthy growth.

Keep It Thriving

Care Guide

Do

Plant in full sun for vibrant blooms 🌞
Water during dry spells to keep soil moist
Divide every 3-4 years to rejuvenate the plant
Use well-draining soil to prevent root rot
Remove spent flowers to encourage more blooms

Don't

Avoid overwatering, which can cause rhizome rot ❌
Don’t plant in heavy clay soil without amendments
Refrain from fertilizing late in the season
Never leave dead foliage over winter in cold climates
Avoid planting in shaded areas for best flowering

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Divide
Mulch
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Violet‑flowered perennial borderScented rock garden accentColorful natural meadow

Companion Plants

Daylilies Peonies Salvia Coreopsis Sedum

Multiply

Propagation Methods

Good to Know

Common Questions

June Krauss Siberian Iris questions

What zones can June Krauss Siberian Iris grow in?

June Krauss Siberian Iris is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is June Krauss Siberian Iris deer resistant?

Yes — June Krauss Siberian Iris is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does June Krauss Siberian Iris bloom?

June Krauss Siberian Iris typically blooms in early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does June Krauss Siberian Iris need full sun?

June Krauss Siberian Iris does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.