Garden hybrid

This is a garden hybrid, bred from more than one wild species, so it has no single species page of its own.

299 other cultivars

perennial

Hosta Blue River

Hosta x hybrida 'Blue River'

The Story

Plant Bio

Hosta x hybrida 'Blue River' is a perennial shade-loving plant distinguished by its broad, arching leaves with a striking blue-green hue and tall flower spikes bearing lavender flowers in summer.

This cultivar is prized for its vibrant blue foliage that maintains its color throughout the growing season and its elegant, tall flower scapes that attract pollinators.

Uses & Benefits:

Lush foliage provides a vibrant groundcover that thrives in shaded areas, adding texture and color.

Helps suppress weeds and retains soil moisture in shaded garden zones.

Provides habitat for beneficial insects and maintains soil health in shaded ecosystems.

Garden hybrid

Bred from more than one wild species, so it has no species page of its own.

Essentials

At a Glance

Plant Type

Perennial

Height

12 inches

Width

24 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8, 9

Water

Consistent moisture

Humidity

Prefers humid environments

Lifespan

Perennial

Native To

East Asia

Toxicity

Toxic to dogs, cats, and horses

Bloom period

Early summer – Late summer

In flower about 3 months of the year

Planting

How to Grow

Tuck healthy rhizomes into well-drained, moist soil.
Mist cuttings regularly to maintain humidity.
Space plants 18 inches apart for airflow.
Mulch around base to retain moisture and suppress weeds.
Fertilize with balanced slow-release fertilizer in early spring.
Divide every 3-4 years to rejuvenate growth.

Pro Tip

Plant in partial shade for vibrant foliage and long-lasting blooms.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist but not soggy 🌱
Mulch to conserve moisture and regulate soil temperature
Divide in early spring to promote healthy growth

Don't

Avoid overexposure to direct sun which can scorch leaves ❌
Don’t let soil dry out completely
Refrain from using high nitrogen fertilizers that promote floppy leaves

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

Shaded woodland gardenSilver-foliaged borderGroundcover under trees

Companion Plants

Ferns Astilbes Heucheras Japanese painted fern Ligularia

Multiply

Propagation Methods

Good to Know

Common Questions

Hosta Blue River questions

What zones can Hosta Blue River grow in?

Hosta Blue River 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 Hosta Blue River deer resistant?

Not reliably. Deer may browse Hosta Blue River, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Hosta Blue River bloom?

Hosta Blue River 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 Hosta Blue River need full sun?

Hosta Blue River does best in part shade.