shrub

Red Ruffles Azalea

Rhododendron simsii 'Red Ruffles'

The Story

Plant Bio

Rhododendron simsii, known as the Indian Azalea, is a group of evergreen shrubs prized for their large, showy flowers. They are often used as flowering houseplants or in mild-climate landscapes.

'Red Ruffles' is a compact, evergreen azalea featuring vibrant, semi-double, ruffled, crimson-red flowers. Its dense growth habit makes it excellent for containers or small garden spaces.

Uses & Benefits:

Provides a spectacular display of vibrant, ruffled red flowers in spring. Its compact, evergreen nature makes it an excellent choice for foundation plantings, low hedges, and containers, offering year-round structure.

Its smaller size is well-suited for urban gardens, courtyards, and patio containers where space is limited. It can be brought indoors in colder climates as a temporary flowering houseplant.

The dense flowers provide a nectar source for bees and other early season pollinators during their bloom time.

Essentials

At a Glance

Plant Type

Shrub

Height

36 inches

Width

36 inches

Light

Partial Sun

Zones

7, 8, 9

Water

Medium

Humidity

High

Lifespan

Medium-lived shrub

Native To

China, Japan

Toxicity

All parts are toxic if ingested.

Bloom period

Mid-spring – Late spring

In flower about 2 months of the year

Planting

How to Grow

Select a location with morning sun and afternoon shade.
Ensure soil is acidic, rich in organic matter, and well-drained.
Dig a hole twice as wide and just as deep as the container.
Gently tease the roots and place the plant in the hole.
Backfill with soil, ensuring the crown is slightly above soil level.
Water deeply and apply a layer of acidic mulch.

Pro Tip

Provide excellent drainage and protect from harsh afternoon sun and winter winds to prevent leaf burn and dieback.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil consistently moist, but not soggy.
Fertilize after blooming with an acid-loving plant food.
Prune lightly after flowering to shape and promote bushiness.
Provide protection from strong winds and hot sun.

Don't

Do not allow the soil to dry out completely.
Avoid planting in heavy clay or alkaline soils.
Do not fertilize late in the season, which can spur tender new growth.
Avoid deep planting; keep the root crown high.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vibrant container specimenLow formal hedgeFoundation planting for spring color

Companion Plants

Pieris japonica Hosta Astilbe Acer palmatumFerns

Multiply

Propagation Methods

Good to Know

Common Questions

Red Ruffles Azalea questions

What zones can Red Ruffles Azalea grow in?

Red Ruffles 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 Red Ruffles Azalea deer resistant?

Not reliably. Deer may browse Red Ruffles Azalea, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Red Ruffles Azalea bloom?

Red Ruffles Azalea typically blooms in mid-spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Red Ruffles Azalea need full sun?

Red Ruffles Azalea does best in part shade.