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 Regal Rhubarb

Hosta x hybrida 'Regal Rhubarb'

The Story

Plant Bio

Hosta x hybrida 'Regal Rhubarb' is a perennial shade-loving plant characterized by broad, lush green leaves with a slightly rippled margin and tall flower stalks bearing lavender-purple bell-shaped flowers.

This cultivar is distinguished by its upright, vase-shaped habit, with large, slightly wavy, blue-green leaves held on striking, deep red-purple petioles (leaf stalks).

Uses & Benefits:

Provides lush foliage and attractive lavender flowers, enhancing shaded garden areas.

Drought tolerant once established, requires minimal pruning.

Supports pollinators with late spring and early summer blooms.

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

28 inches

Width

40 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8, 9

Water

Moderate

Humidity

Prefers moist, well-drained soil

Lifespan

Perennial

Native To

Northeast Asia

Toxicity

Toxic to dogs, cats, and horses

Bloom period

Early summer – Mid-summer

In flower about 2 months of the year

Planting

How to Grow

Tuck seedlings or divisions into prepared soil
Water thoroughly after planting
Mulch to retain moisture and suppress weeds
Fertilize in early spring with a balanced fertilizer
Divide every 3-4 years in early spring or fall
Remove dead leaves in late fall for tidy appearance

Pro Tip

Plant in well-draining, rich soil in shaded areas for best growth.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist 🌱
Apply mulch to conserve moisture
Divide every few years to rejuvenate

Don't

Avoid direct sunlight which can scorch leaves ❌
Over-fertilize, as it can cause weak growth
Don’t let soil stay waterlogged

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Shaded border with lush foliageGroundcover in woodland gardensUnderstory plant for shaded areas

Companion Plants

Ferns AstilbeJapanese Forest Grass Heuchera Ligularia

Multiply

Propagation Methods

Good to Know

Common Questions

Hosta Regal Rhubarb questions

What zones can Hosta Regal Rhubarb grow in?

Hosta Regal Rhubarb 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 Regal Rhubarb deer resistant?

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

When does Hosta Regal Rhubarb bloom?

Hosta Regal Rhubarb typically blooms in early summer through mid-summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Hosta Regal Rhubarb need full sun?

Hosta Regal Rhubarb does best in part shade.