Species

4 other cultivars

perennialN. America Native

Hercules Alumroot

Heuchera micrantha 'Hercules'

The Story

Plant Bio

Heuchera x micrantha 'Hercules' is known for its robust growth and attractive foliage, which is typically deep green to bronze in color.

This cultivar is particularly noted for its large, showy flowers and excellent tolerance of varying moisture conditions.

Uses & Benefits:

Heuchera Hercules offers striking dark purple foliage, adding contrast and texture to shaded garden beds and borders.

Low-maintenance and drought-tolerant once established, making it ideal for shaded areas with limited care.

Provides habitat and nectar for beneficial insects and pollinators.

Essentials

At a Glance

Plant Type

Perennial

Height

12 inches

Width

18 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8, 9

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

North America

Toxicity

Non-toxic to humans and pets

Bloom period

Late spring – Early summer

In flower about 2 months of the year

Planting

How to Grow

Tuck seedlings into well-draining soil in early spring.
Water consistently to keep soil moist but not waterlogged.
Mist cuttings to maintain humidity during propagation.
Fertilize lightly in early spring with a balanced fertilizer.
Divide clumps every 2-3 years in early spring or fall.
Mulch around plants to retain moisture and suppress weeds.

Pro Tip

Use organic compost to enrich soil and promote vibrant foliage.

Keep It Thriving

Care Guide

Do

Water regularly during dry spells 🌱
Deadhead spent flowers to encourage more blooms
Apply a balanced fertilizer in spring

Don't

Avoid overwatering to prevent root rot ❌
Don't let soil dry out completely
Refrain from heavy pruning in late fall

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Shaded woodland border with silvery foliageGroundcover in shaded garden bedsContainer plant for shaded patios

Companion Plants

Ferns Hostas Astilbe Heuchera 'Caramel'Brunnera

Multiply

Propagation Methods

Good to Know

Common Questions

Hercules Alumroot questions

What zones can Hercules Alumroot grow in?

Hercules Alumroot 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 Hercules Alumroot deer resistant?

Yes — Hercules Alumroot is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Hercules Alumroot bloom?

Hercules Alumroot typically blooms in late spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Hercules Alumroot need full sun?

Hercules Alumroot does best in part shade.

Is Hercules Alumroot drought tolerant?

Yes — once established (usually after the first full season), Hercules Alumroot handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.