perennial

Aichi no Kagayaki Iris

Iris x pseudata 'Aichi no Kagayaki'

The Story

Plant Bio

A hybrid between the yellow flag iris (I. pseudacorus) and the Japanese iris (I. ensata), this beardless, rhizomatous perennial features sword-like, green leaves. It thrives in wet conditions, making it ideal for water gardens and pond margins.

This cultivar, meaning 'Splendor of Aichi', is prized for its large, velvety, dark violet-purple falls marked with a brilliant yellow signal, and contrasting white standards.

Uses & Benefits:

Provides striking purple flowers that add elegance to garden beds.

Prefers well-draining soil, reducing maintenance needs.

Supports pollinators like bees and butterflies during bloom.

Essentials

At a Glance

Plant Type

Perennial

Height

30 inches

Width

18 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

Asia

Toxicity

Parts of this plant are toxic if ingested.

Planting

How to Grow

Tuck rhizomes 2 inches deep in well-draining soil.
Water regularly during the first growing season.
Select a sunny location for best blooms.
Mulch lightly to retain moisture and suppress weeds.
Divide every 3-4 years for vigorous growth.
Remove spent flowers to encourage continuous blooming.

Pro Tip

Plant in full sun with well-draining soil for best results.

Keep It Thriving

Care Guide

Do

Water during dry spells ☀️
Divide clumps every 3-4 years 🌱
Mulch to conserve moisture and control weeds
Remove spent flowers to promote rebloom

Don't

Avoid overwatering to prevent rhizome rot ❌
Don’t plant in poorly drained soil
Refrain from fertilizing excessively
Don’t disturb roots during flowering

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Colorful perennial borderPurple-flowered accentWater-efficient garden

Companion Plants

Daylilies Hostas Ferns SedumOrnamental grasses

Multiply

Propagation Methods

Good to Know

Common Questions

Aichi no Kagayaki Iris questions

What zones can Aichi no Kagayaki Iris grow in?

Aichi no Kagayaki Iris is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Aichi no Kagayaki Iris deer resistant?

Yes — Aichi no Kagayaki Iris is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Aichi no Kagayaki Iris bloom?

Aichi no Kagayaki Iris typically blooms in late spring to 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 Aichi no Kagayaki Iris need full sun?

Aichi no Kagayaki Iris does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.