The Story
Plant Bio
Gardenia augusta, commonly known as cape jasmine, is an evergreen shrub native to the warm, humid regions of East and Southeast Asia. Belonging to the Rubiaceae family, it is highly valued in cultivation for its lustrous, deep green foliage and intensely fragrant blooms.
'Magnifica' is a robust cultivar distinguished by its exceptionally large, rose-like double flowers that reach up to 12 centimetres in diameter. It forms a dense, upright, and rounded shrub up to two metres tall, making it an excellent choice for formal hedges or specimen planting.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Shrub
Height
78 inches
Width
78 inches
Light
Full Sun, Partial Sun
Zones
8, 9, 10
Water
High
Humidity
High
Lifespan
10-20 years
Native To
East Asia and Southeast Asia
Toxicity
Mildly toxic to pets
Bloom period
Late spring – Summer
In flower about 3 months of the year
Planting
How to Grow
- Select a planting site with acidic, organic-rich soil that drains freely, offering protection from harsh afternoon sun.
- Incorporate generous amounts of compost, peat, or elemental sulfur to lower soil pH if planting in alkaline conditions.
- Water deeply and regularly during the spring and summer growing seasons to keep the root zone consistently moist.
- Apply an acid-loving, organic-based fertiliser every three to four weeks from early spring through late summer.
- Spread a thick layer of organic mulch around the base, keeping it clear of the main stem, to preserve soil moisture.
Pro Tip
Maintain a thick layer of organic mulch over the shallow root zone to preserve moisture and maintain soil acidity; even brief summer dryness triggers immediate and heavy flower bud drop.
Keep It Thriving
Care Guide
Do
- Mulch well to retain soil moisture and maintain acidity.
- Water regularly during hot weather to prevent bud drop.
- Apply chelated iron if leaves show interveinal chlorosis.
Don't
- Do not plant in alkaline clay soils without incorporating organic matter and sulfur.
- Do not allow the soil to dry out completely during the flowering season.
- Do not prune heavily into old, leafless wood or during winter when buds are setting.
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
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Magnifica Gardenia questions
What zones can Magnifica Gardenia grow in?
Magnifica 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 Magnifica Gardenia bloom?
Magnifica 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 Magnifica Gardenia need full sun?
Magnifica Gardenia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
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Gardenia jasminoides 'Diamond Spire'

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Gardenia jasminoides 'Steady As She Goes'

August Beauty Gardenia
Gardenia augusta 'August Beauty'

ScentAmazing Gardenia
Gardenia jasminoides 'Scent Amazing'

Double Mint Gardenia
Gardenia jasminoides 'Double Mint'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Magnifica Gardenia with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.



