Shadowland® Giant 'Empress Wu' Hosta (Hosta hybrid 'Empress Wu')

The World's Largest Hosta • A Monumental Shade Garden Centerpiece with Massive Foliage and Timeless Elegance

Plant Overview

Common Name: Shadowland® Giant 'Empress Wu' Hosta
Botanical Name: Hosta hybrid 'Empress Wu'
Plant Type: Herbaceous Perennial
Family: Asparagaceae
Hardiness Zones: 3–9

Shadowland® Giant 'Empress Wu' is recognized as the largest hosta cultivar in the world, producing an extraordinary mound of enormous, thick, dark green foliage that creates an unforgettable focal point in any shade garden. Named after China's only female emperor, this magnificent perennial commands attention with its regal size, architectural form, and exceptional landscape presence.

Towering lavender flower scapes emerge in early summer, attracting hummingbirds while adding another season of beauty above its massive foliage. Whether planted as a specimen or incorporated into a woodland garden, Empress Wu delivers unparalleled drama and elegance.

Why We Grow It at 19 Birch Lane

At 19 Birch Lane, Shadowland® Giant 'Empress Wu' perfectly represents our vision of creating immersive botanical experiences through exceptional plants. Few perennials make such a dramatic statement while remaining remarkably easy to grow.

Visitors are often amazed by the enormous foliage, making this one of the most photographed shade plants in our botanical collections.

Quick Facts

• Botanical Name: Hosta hybrid 'Empress Wu'

• Common Name: Shadowland® Giant 'Empress Wu'

• Plant Type: Herbaceous Perennial

• Family: Asparagaceae

• Hardiness Zones: 3–9

• Height: 36–48 inches

• Flower Scape Height: Up to 48 inches

• Spread: 60–72 inches

• Growth Habit: Large Upright Mound

• Growth Rate: Moderate

• Maintenance: Easy

• Award: 2023 Hosta of the Year

Growing Conditions

Light Requirements

Empress Wu thrives in:

• Partial Shade

• Woodland Shade

• Full Shade

Morning sun is beneficial in northern climates, while afternoon shade helps maintain lush foliage throughout summer.

Soil Requirements

For best performance provide:

• Rich organic soil

• Moist but well-drained soil

• Woodland soil rich in compost

• Acidic to neutral pH

Annual additions of compost or leaf mold encourage maximum growth.

Water Requirements

• Average moisture

• Consistently moist soil

• Avoid prolonged drought

• Mulch annually to conserve moisture

Large hostas benefit from deep watering during extended dry periods.

Foliage Characteristics

The spectacular foliage is what makes Empress Wu legendary.

Foliage Features

• Massive dark green leaves

• Thick slug-resistant texture

• Heavy leaf substance

• Strong upright habit

• Dramatic architectural presence

• One of the largest leaves found on any hosta

As the plant matures over several years, the leaves become increasingly impressive in both size and texture.

Flower Characteristics

Elegant flower stalks emerge well above the foliage in early summer.

Flower Features

• Pale lavender flowers

• Bell-shaped blooms

• Held on tall upright scapes

• Excellent hummingbird attraction

• Beautiful contrast above the dark foliage

Pollinator & Wildlife Benefits

Although prized for its foliage, Empress Wu supports wildlife as well.

Attracts

• Hummingbirds

• Native Bees

• Beneficial Pollinators

The nectar-rich flowers provide valuable early summer resources for garden pollinators.

Garden Uses

This giant hosta is an exceptional landscape specimen.

Recommended Uses

• Woodland Gardens

• Shade Borders

• Botanical Gardens

• Specimen Plantings

• Foundation Plantings

• Asian Gardens

• Water Garden Edges

• Large Containers

• Estate Gardens

• Hosta Collections

Its immense size makes it ideal as a dramatic focal point.

Companion Plants

At 19 Birch Lane, Shadowland® Giant 'Empress Wu' pairs beautifully with:

• Japanese Maples

• Japanese Painted Ferns

• Astilbe

• Ligularia

• Brunnera

• Hellebores

• Hakone Grass

• Trillium

• Solomon's Seal

• Hydrangeas

These companion plants highlight the impressive scale and texture of Empress Wu while creating a layered woodland landscape.

Care & Maintenance

Despite its size, Empress Wu is surprisingly easy to grow.

Maintenance Tips

• Plant in organically rich soil

• Water consistently during dry periods

• Apply mulch annually

• Remove spent flower stalks after bloom

• Cut foliage back after frost

• Remove old leaves in late fall to discourage insects and slugs

• Divide only when necessary, typically every 6–8 years

Patience is rewarded—Empress Wu reaches its full majestic size after several growing seasons.

Why Gardeners Love Empress Wu

✔ Largest hosta available

✔ Incredible architectural foliage

✔ Perfect woodland specimen

✔ Easy to grow

✔ Long-lived perennial

✔ Excellent shade garden centerpiece

✔ Attracts hummingbirds

✔ Outstanding botanical garden plant

Plant Finder Details

Botanical Name: Hosta hybrid 'Empress Wu'
Common Name: Shadowland® Giant 'Empress Wu' Hosta
Plant Type: Herbaceous Perennial
Family: Asparagaceae
Zones: 3–9
Height: 36–48 inches
Spread: 60–72 inches
Bloom Time: Early Summer
Flower Color: Pale Lavender
Foliage Color: Dark Green
Leaf Characteristics: Giant, Thick, Upright Leaves
Growth Habit: Large Upright Mound
Sun Exposure: Partial Shade to Full Shade
Water Requirements: Average
Maintenance: Easy
Container Friendly: Yes (Large Containers)
Award: 2023 Hosta of the Year

📍 Where to Find This Plant at 19 Birch Lane

Visitors can experience Shadowland® Giant 'Empress Wu' growing in two of our signature shade collections:

🌿 Woodland Garden – Planted beneath mature trees where its enormous foliage creates a dramatic woodland focal point among ferns, trilliums, hellebores, and other shade-loving perennials.

🍁 Asian Garden – Used as a bold architectural specimen alongside Japanese maples, ornamental grasses, stone features, and woodland pathways, where its immense leaves create an unforgettable garden experience.

As our botanical collections continue to expand, Empress Wu has become one of the defining plants visitors remember long after leaving the gardens.

🌸 Seasonal Interest Calendar

🌱 Spring

Large blue-green shoots emerge from the soil before rapidly unfurling into oversized leaves. Each week brings dramatic growth as the plant begins building its enormous presence.

☀️ Summer

By early summer, Empress Wu reaches its full grandeur with massive dark green leaves forming an impressive mound up to six feet wide. Tall lavender flower scapes attract hummingbirds while adding elegant vertical interest.

🍂 Fall

The enormous foliage remains beautiful well into autumn before gradually fading after frost. Even late in the season, the plant continues providing exceptional texture and structure within the shade garden.

❄️ Winter

Although dormant through winter, the deep root system stores energy for another spectacular display the following spring, with mature plants becoming larger and more impressive every year.

Garden Design Tips from 19 Birch Lane

At 19 Birch Lane, we use Shadowland® Giant 'Empress Wu' as the anchor plant in large shade gardens where its incredible scale establishes structure and visual balance. Rather than surrounding it with other oversized plants, we pair it with finer textures like Japanese painted ferns, Hakone grass, Astilbe, Brunnera, and spring woodland wildflowers to emphasize its remarkable size.

For the greatest impact, allow at least five to six feet of space around mature plants so visitors can fully appreciate the impressive foliage. Position Empress Wu where it can be viewed from multiple angles along pathways, near benches, or beside water features. Like a mature Japanese maple, this is a plant that naturally becomes a destination within the garden.

Frequently Asked Questions

Is Empress Wu really the largest hosta?

Yes. Shadowland® Giant 'Empress Wu' is widely recognized as the largest hosta cultivar available, reaching nearly four feet tall and six feet wide when mature.

How long does it take to reach full size?

Most plants require five to seven years to achieve their full mature size, becoming more impressive with each growing season.

Does Empress Wu attract hummingbirds?

Yes. The pale lavender flowers are highly attractive to hummingbirds during early summer.

Can it be grown in containers?

Yes, but only in very large containers with consistent watering and rich organic soil.

Is Empress Wu deer resistant?

Like most hostas, it is not deer resistant. Protection is recommended where deer browsing is common.

Botanical Garden Notes

Shadowland® Giant 'Empress Wu' is more than simply a hosta—it is a living sculpture. Its monumental foliage, architectural presence, and remarkable longevity make it one of the signature plants within the shade gardens at 19 Birch Lane. Few perennials possess the ability to completely transform a landscape while requiring so little maintenance, making Empress Wu a true botanical treasure.

Shadowland® Giant 'Empress Wu' Hosta (Hosta hybrid 'Empress Wu')

The World's Largest Hosta • A Monumental Shade Garden Centerpiece with Massive Foliage and Timeless Elegance