bulb corm tuber

Dutch Iris

Iris hollandica

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Bulb Corm Tuber

Height

24 inches

Width

6 inches

Light

Full Sun, Partial Sun

Zones

5, 6, 7, 8, 9

Water

Moderate

Humidity

Moderate

Lifespan

Many years with proper division

Native To

Garden origin

Toxicity

Toxic if ingested

The Story

Plant Bio

Iris hollandica, commonly known as the Dutch Iris, is celebrated for its elegant flowers and sword-like foliage. This species is noted for its vibrant, upright blooms that are long-lasting and thrive in well-drained soils.

Bloom Period:

EarlyLate

Uses & Benefits:

Provides striking, tall flowers with fragrant blooms perfect for borders and cuttings.

Easy to grow with minimal care, suitable for naturalized areas.

Supports pollinators like bees and butterflies during blooming season.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

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Planting

How to Grow

Select a well-drained, fertile soil with neutral to slightly acidic pH.
Tuck rhizomes 2-3 inches deep and 12 inches apart in early spring.
Water thoroughly after planting to settle soil and promote root growth.
Mist cuttings or division material during early spring for propagation.
Apply a balanced fertilizer in early spring and after blooming for best growth.
Mulch around plants to retain moisture and suppress weeds.

Pro Tip

Plant rhizomes in full sun for vibrant blooms and strong growth.

Keep It Thriving

Care Guide

Do

Water regularly, especially during dry spells 💧
Divide clumps every 3-4 years to maintain vigor
Remove spent flowers to encourage more blooms
Apply fertilizer in early spring for healthy growth

Don't

Avoid overwatering to prevent rhizome rot ❌
Do not plant too deeply; keep rhizomes near the surface
Refrain from neglecting division which can lead to overcrowding
Avoid using fresh mulch that can harbor pests

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vivid perennial border with tall, elegant flower spikesScented garden bed with lush foliage and striking bloomsStructural accent in mixed planting beds

Companion Plants

Daylilies Salvia Peonies Alliums Hostas

Multiply

Propagation Methods

Good to Know

Common Questions

Dutch Iris questions

What zones can Dutch Iris grow in?

Dutch Iris is hardy in USDA Zones 5–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Dutch Iris deer resistant?

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

When does Dutch Iris bloom?

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

Does Dutch Iris need full sun?

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

Is Dutch Iris drought tolerant?

Yes — once established (usually after the first full season), Dutch Iris handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.