Species

111 other cultivars

perennial

German Iris That's all Folks

The Story

Plant Bio

Iris germanica 'That's All Folks' is a tall bearded iris renowned for its huge, ruffled, brilliant yellow flowers with large white falls edged in yellow. It has classic sword-shaped foliage.

This cultivar is distinguished by its unique flower form and vibrant coloration, making it a striking addition to perennial borders and floral displays.

Uses & Benefits:

Striking purple flowers add elegance to borders and perennial beds.

Low-maintenance perennial providing reliable color year after year.

Supports pollinators like bees and butterflies during bloom.

SpeciesIris x germanicaGerman Iris

Essentials

At a Glance

Plant Type

Perennial

Height

24 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Moderate

Humidity

Average

Lifespan

Many years with proper care

Native To

Europe and Western Asia

Toxicity

Toxic if ingested

Bloom period

Late spring – Late fall

In flower about 7 months of the year

Planting

How to Grow

Tuck rhizomes 2 inches deep in well-draining soil.
Water thoroughly after planting and keep soil moist for 2 weeks.
Place in full sun for optimal blooming.
Divide every 3-4 years in late summer to promote growth.
Mulch lightly to retain moisture and suppress weeds.
Remove faded flowers to encourage reblooming.

Pro Tip

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

Keep It Thriving

Care Guide

Do

Water regularly during dry periods 🌱
Divide every 3-4 years for vigorous growth
Remove spent flowers to promote rebloom

Don't

Avoid overly wet soil to prevent rot ❌
Don’t plant too deeply, keep rhizomes close to surface
Refrain from fertilizing with high nitrogen in fall

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Colorful border with fragrant bloomsElegant perennial in flower bedsVanilla-scented accent in cottage gardens

Companion Plants

Daylilies SalviaPeony HostaLavender

Multiply

Propagation Methods

Good to Know

Common Questions

German Iris That's all Folks questions

What zones can German Iris That's all Folks grow in?

German Iris That's all Folks 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 German Iris That's all Folks deer resistant?

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

When does German Iris That's all Folks bloom?

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

Does German Iris That's all Folks need full sun?

German Iris That's all Folks does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is German Iris That's all Folks drought tolerant?

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