Species

Iris sibiricaSiberian Iris

26 other cultivars

perennial

Ruffled Velvet Siberian Iris

Iris sibirica 'Ruffled Velvet'

The Story

Plant Bio

Siberian irises are clump-forming perennials with narrow, sword-like, grassy foliage. They produce elegant, beardless flowers on slender stems in late spring to early summer. They are known for their hardiness and adaptability.

Features large, 5-inch wide, velvety, deep violet-purple flowers with heavily ruffled falls. A distinctive gold and white signal patch marks the base of each fall.

Uses & Benefits:

Iris sibirica Ruffled Velvet offers striking blue blooms and graceful foliage, perfect for adding elegance to gardens.

Its hardy nature requires minimal maintenance, making it ideal for low-effort landscapes.

Provides nectar for pollinators like bees and butterflies, supporting local biodiversity.

SpeciesIris sibiricaSiberian Iris

Essentials

At a Glance

Plant Type

Perennial

Height

30 inches

Width

20 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Medium to wet

Humidity

Average

Lifespan

Perennial

Native To

Garden origin

Toxicity

All parts may cause discomfort if ingested; can cause skin irritation.

Bloom period

Early summer – Late summer

In flower about 3 months of the year

Planting

How to Grow

Select a sunny spot with well-draining soil for planting.
Tuck rhizomes 2-3 inches deep, spacing them 12 inches apart.
Water thoroughly after planting to settle the soil.
Mist cuttings lightly if propagating via division in early spring.
Mulch lightly to retain moisture and suppress weeds.
Fertilize in early spring with a balanced fertilizer for best blooms.

Pro Tip

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

Keep It Thriving

Care Guide

Do

Water regularly during dry spells 🌱
Apply a balanced fertilizer annually
Divide clumps every 3-4 years to maintain vigor
Remove spent blooms to encourage more flowers

Don't

Avoid overwatering, which can cause root rot ❌
Do not plant in heavy, poorly draining soil
Refrain from cutting back foliage in late fall
Avoid using high nitrogen fertilizers excessively

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Perennial border with silvery foliageRock garden accentWildflower meadow

Companion Plants

Daylilies Alliums Salvia SedumPeonies

Multiply

Propagation Methods

Good to Know

Common Questions

Ruffled Velvet Siberian Iris questions

What zones can Ruffled Velvet Siberian Iris grow in?

Ruffled Velvet Siberian 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 Ruffled Velvet Siberian Iris deer resistant?

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

When does Ruffled Velvet Siberian Iris bloom?

Ruffled Velvet 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 Ruffled Velvet Siberian Iris need full sun?

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