2 named cultivars

shrub

Satsuki Azalea

Rhododendron indicum

Same species

2 named cultivars

Essentials

At a Glance

Plant Type

Shrub

Height

30 inches

Width

30 inches

Light

Partial Sun

Zones

7, 8, 9

Water

Moderate

Humidity

Moderate

Lifespan

Perennial

Native To

Japan

Toxicity

All parts toxic, including nectar

The Story

Plant Bio

Rhododendron indicum, the satsuki azalea, is a low dense broadleaf evergreen shrub from Japan, spreading two to three feet in both directions and growing slowly. Small glossy leaves cover twigs clothed in stiff reddish-brown hairs, and funnel-shaped pink to red flowers open in late spring, considerably later than most garden azaleas. It flowers weeks later than common azaleas, which both extends the season and lifts the buds clear of late frosts. All parts are toxic, including the nectar, so keep prunings away from grazing animals. Its small leaves, slow growth and tolerance of hard pruning also make it the classic azalea for bonsai.

Uses & Benefits:

Late-season funnel-shaped flowers on a dense low evergreen mound with small glossy leaves.

Slow, compact and tolerant of hard pruning, which makes it the standard azalea for bonsai.

Supports specialist mining bees associated with Rhododendron, though the nectar is toxic to others.

Planting

How to Grow

Plant in partial shade in acid, well-drained soil.
Set the rootball slightly high, never buried.
Water with rainwater where tap water is alkaline.
Mulch over the shallow roots, clear of the stem.
Prune straight after flowering if shaping is needed.
Keep prunings away from livestock and pets.

Pro Tip

Azalea roots sit in the top few inches of soil, so a summer of shallow watering fails them — water deeply and mulch instead.

Keep It Thriving

Care Guide

Do

Plant slightly high in acid soil ⛰️
Mulch over the shallow roots 🍂
Water deeply rather than often 💧
Prune right after flowering ✂️

Don't

Plant it deep or in heavy wet clay ❌
Let pets or livestock eat any part ❌
Prune in summer — that removes buds ❌

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Mulch
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Low foundation and woodland plantingBonsai and container cultureLate-season azalea for extending the display

Companion Plants

Camellia Japanese Maple Hellebore Autumn Fern Hosta

Multiply

Propagation Methods

Good to Know

Common Questions

Satsuki Azalea questions

What zones can Satsuki Azalea grow in?

Satsuki Azalea is hardy in USDA Zones 7–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Satsuki Azalea deer resistant?

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

When does Satsuki Azalea bloom?

Satsuki Azalea 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 Satsuki Azalea need full sun?

Satsuki Azalea does best in part shade.