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 Big Sam

Hosta x hybrida 'Big Sam'

The Story

Plant Bio

Hosta x hybrida 'Big Sam' is a robust perennial known for its large, lush, heart-shaped leaves with a striking yellow-green coloration and tall flower spikes bearing lavender to pale purple blooms.

This cultivar is distinguished by its exceptionally large foliage and vigorous growth, making it a popular choice for creating bold, shaded garden focal points.

Uses & Benefits:

Adds lush, evergreen foliage to shaded gardens, providing texture and depth.

Helps suppress weeds and retains soil moisture in shaded areas.

Provides habitat for beneficial insects and small wildlife.

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

24 inches

Width

36 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8, 9

Water

Consistent moisture, avoid waterlogging

Humidity

Prefers moderate humidity

Lifespan

Perennial

Native To

Asia

Toxicity

Toxic to pets

Bloom period

Mid-summer – Late summer

In flower about 2 months of the year

Planting

How to Grow

Choose a shaded spot with rich, moist soil.
Tuck young plants into prepared holes, ensuring roots are spread out.
Mist cuttings regularly to encourage root development.
Water consistently to keep soil moist but not waterlogged.
Mulch around plants to retain moisture and suppress weeds.
Divide every 3–4 years in early spring or fall for best growth.

Pro Tip

Plant in well-draining, humus-rich soil for vibrant foliage.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist 🌱
Mulch annually to conserve moisture
Divide every few years for healthy growth
Provide shade during hottest months

Don't

Avoid overwatering to prevent root rot ❌
Don’t expose to direct, harsh sunlight
Skip fertilizing in late fall
Avoid disturbing roots during growth season

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Shaded border with lush foliagePlant as a groundcover for shaded areas

Companion Plants

Ferns Astilbe HeucheraJapanese painted fern

Multiply

Propagation Methods

Good to Know

Common Questions

Hosta Big Sam questions

What zones can Hosta Big Sam grow in?

Hosta Big Sam 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 Big Sam deer resistant?

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

When does Hosta Big Sam bloom?

Hosta Big Sam typically blooms in mid-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 Big Sam need full sun?

Hosta Big Sam does best in part shade.