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 Fort Knox

Hosta x hybrida 'Fort Knox'

The Story

Plant Bio

Hosta x hybrida 'Fort Knox' is a vigorous perennial known for its broad, golden-yellow foliage and elegant, bell-shaped lavender flowers that emerge in summer, creating a striking contrast with its vibrant leaves.

This cultivar is prized for its consistently bright, variegated foliage that maintains its color throughout the growing season and its excellent tolerance to sun compared to other hostas.

Uses & Benefits:

Provides lush, textured foliage that brightens shaded areas with minimal upkeep.

Resistant to pests and adaptable to various soil types, making it a gardener's friend.

Supports local pollinators indirectly by maintaining healthy shade gardens.

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

22 inches

Width

45 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8, 9

Water

Moderate

Humidity

Prefers moderate humidity

Lifespan

Perennial

Native To

Cultivar

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

Choose a shaded spot with well-draining soil
Tuck young plants into soil, watering thoroughly
Mulch around base to retain moisture and suppress weeds
Mist leaves during dry spells to keep foliage healthy
Divide every 3-4 years in early spring or fall
Fertilize with a balanced slow-release fertilizer in spring

Pro Tip

Plant in shade or partial shade for best foliage color and health.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist 🌱
Mulch to conserve moisture and regulate temperature
Divide every few years to maintain vigor

Don't

Avoid direct sunlight which can scorch leaves ❌
Over-fertilizing can lead to weak growth
Don’t let soil dry out completely

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Shaded woodland borderSilver‑foliaged hedgeContainer garden accent

Companion Plants

Ferns Astilbe HeucheraJapanese painted fern Ligularia

Multiply

Propagation Methods

Good to Know

Common Questions

Hosta Fort Knox questions

What zones can Hosta Fort Knox grow in?

Hosta Fort Knox 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 Fort Knox deer resistant?

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

When does Hosta Fort Knox bloom?

Hosta Fort Knox 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 Fort Knox need full sun?

Hosta Fort Knox does best in part shade.