2 named cultivars

shrubN. America Native

Great Laurel Rhododendron

Rhododendron maximum

The Story

Plant Bio

A large, evergreen shrub known for its large, showy flowers and broad, leathery leaves.

One of the hardiest Rhododendron species, capable of thriving in a range of conditions.

Uses & Benefits:

Elegant, evergreen shrub with large, showy flowers that add visual interest year-round.

Provides privacy as a dense hedge and reduces noise pollution.

Supports pollinators with fragrant blooms and dense foliage.

Essentials

At a Glance

Plant Type

Shrub

Height

120 inches

Width

120 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8

Water

Consistent moisture, avoid drought stress

Humidity

Prefers humid environments

Lifespan

Decades

Native To

Eastern North America

Toxicity

Toxic to pets and humans if ingested

Planting

How to Grow

Choose a well-draining, acidic soil with organic matter.
Tuck seeds or cuttings in early spring for best results.
Water regularly to keep soil moist but not waterlogged.
Apply mulch around the base to retain moisture and regulate temperature.
Provide partial shade in hot climates to prevent leaf scorch.
Transplant seedlings in early spring after the risk of frost has passed.

Pro Tip

Use acid-loving fertilizers and avoid overwatering to promote healthy growth.

Keep It Thriving

Care Guide

Do

Water consistently to keep soil moist 🌱
Prune after flowering to shape the plant
Mulch annually to conserve moisture
Feed with an acid-loving fertilizer in spring
Monitor for pests regularly

Don't

Avoid heavy clay soil without amendment ❌
Don’t expose roots to extreme heat or drought
Refrain from fertilizing with alkaline fertilizers
Never prune in late summer or fall
Avoid overwatering, which can lead to root rot

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Mulch
Pest Check
Plant
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Evergreen hedge with glossy foliageShaded woodland borderAccent plant in shaded garden beds

Companion Plants

Ferns Hostas Camellias Azaleas Pieris

Multiply

Propagation Methods

Good to Know

Common Questions

Great Laurel Rhododendron questions

What zones can Great Laurel Rhododendron grow in?

Great Laurel Rhododendron is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Great Laurel Rhododendron deer resistant?

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

When does Great Laurel Rhododendron bloom?

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

Does Great Laurel Rhododendron need full sun?

Great Laurel Rhododendron does best in part shade.