Species

4 other cultivars

shrub

Gardenia

Gardenia augusta 'Magnifica'

The Story

Plant Bio

Gardenia jasminoides is an upright, multi-stemmed evergreen shrub native to southern China and Japan, characterized by thick, highly glossy, dark emerald-green leaves. The species produces intensely fragrant flowers at the branch tips from late spring through summer, requiring acidic, well-draining soils to thrive.

'Magnifica' is distinguished by its exceptionally large, creamy-white double flowers that resemble roses and reach up to 10 to 12 centimeters in diameter. This cultivar forms a dense, rounded shrub reaching 1.5 to 2 meters in height, making it highly suited for formal hedges or training into standards.

Uses & Benefits:

Highly valued for its glossy, deep green evergreen foliage and large, rose-like, intensely fragrant double white flowers.

Functions well as a dense formal hedge, a container specimen for patios, or trained into a formal standard.

Provides nectar for bees, butterflies, and other generalist insect pollinators during the warm months.

Essentials

At a Glance

Plant Type

Shrub

Height

72"

Width

48"

Light

Full Sun, Partial Sun

Zones

8, 9, 10

Water

Medium

Humidity

High

Lifespan

10-20 years

Native To

Asia (Southern China, Japan)

Toxicity

Low (mild GI upset if ingested)

Bloom period

Late spring – Summer

In flower about 4 months of the year

Planting

How to Grow

Select a planting site with acidic soil (pH 5.0 to 6.5) that receives full sun to partial shade, preferably with afternoon shade in hot climates.
Amend the planting area with organic matter to create a humus-rich, highly draining loam or sandy loam.
Plant the root ball slightly above the surrounding soil grade to ensure excellent drainage and prevent crown rot.
Apply a thick layer of organic mulch over the root zone to conserve moisture and protect the shallow root system from temperature extremes.

Pro Tip

Avoid applying fertilizer in autumn, as this stimulates tender new growth that is easily killed by early winter frosts.

Keep It Thriving

Care Guide

Do

Maintain consistent soil moisture, watering deeply whenever the top inch of soil begins to dry.
Apply an acid-specific, slow-release fertilizer in early spring and early summer.
Tip-prune the branches immediately after the flowering season finishes to maintain a bushy, compact form.

Don't

Do not cultivate or dig soil around the base of the plant, as this damages the highly sensitive, shallow root system.
Do not irrigate using overhead sprinklers, which increases the risk of powdery mildew and leaf diseases.
Do not prune late in the season, which removes the buds set for the following year's blooms.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Formal HedgeSpecimen PlantContainer GardenEntryway FeatureStandard (Topiary)

Companion Plants

Camellia japonica Rhododendron Pieris japonica Heuchera

Multiply

Propagation Methods

Good to Know

Common Questions

Gardenia questions

What zones can Gardenia grow in?

Gardenia is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

When does Gardenia bloom?

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

Does Gardenia need full sun?

Gardenia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.