Species

Iris ensataJapanese Iris

18 other cultivars

perennial

Japanese Iris Favorite

Iris ensata 'Favorite'

The Story

Plant Bio

Iris ensata 'Favorite' is a perennial aquatic plant known for its large, showy, iris-like flowers with a rich violet hue and lush, sword-shaped foliage that thrives in wet, boggy conditions.

This cultivar is distinguished by its particularly vibrant flower coloration and its excellent performance in water gardens, producing abundant blooms during the summer months.

Uses & Benefits:

Adds striking purple blooms to garden borders and pond edges, attracting pollinators.

Provides cut flowers for floral arrangements, with long-lasting blossoms.

Supports bees and butterflies, enhancing garden biodiversity.

SpeciesIris ensataJapanese Iris

Essentials

At a Glance

Plant Type

Perennial

Height

36 inches

Width

18 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Requires consistent moisture

Humidity

Average garden humidity

Lifespan

Perennial

Native To

Asia

Toxicity

Toxic if ingested

Bloom period

Late spring – Late summer

In flower about 4 months of the year

Planting

How to Grow

Select a sunny spot with moist, well-drained soil.
Tuck rhizomes 2 inches deep in spring after the last frost.
Water regularly to keep soil consistently moist but not waterlogged.
Mist cuttings or divide plants every 3-4 years for best growth.
Mulch around plants to retain moisture and suppress weeds.
Fertilize with a balanced fertilizer in early spring.

Pro Tip

Plant in rich, moist soil for vibrant blooms and healthy growth.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist 🌱
Divide every 3-4 years to rejuvenate
Mulch to retain moisture

Don't

Allow soil to dry out completely ❌
Overfertilize, which can cause leggy growth
Plant in shade, which reduces flowering

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vibrant border along pond edgesElegant focal point in perennial bedsColorful cut flower display

Companion Plants

Ferns Hostas Ligularia AstilbeJapanese Maple

Multiply

Propagation Methods

Good to Know

Common Questions

Japanese Iris Favorite questions

What zones can Japanese Iris Favorite grow in?

Japanese Iris Favorite 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 Japanese Iris Favorite deer resistant?

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

When does Japanese Iris Favorite bloom?

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

Does Japanese Iris Favorite need full sun?

Japanese Iris Favorite does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.