Gardenia jasminoides Diamond Spire
Gardenia jasminoides 'Diamond Spire'
Essentials
At a Glance
Plant Type
Shrub
Height
48 inches
Width
24 inches
Light
Partial Sun, Shade
Zones
7, 8, 9
Water
Moderate
Humidity
High
Lifespan
Many years
Native To
China and Japan
Toxicity
Mildly toxic to pets if ingested
The Story
Plant Bio
Gardenia jasminoides 'Diamond Spire' is an evergreen shrub known for its glossy, dark green foliage and clusters of fragrant, white, tubular flowers that bloom in summer, creating a lush, aromatic display. This cultivar is distinguished by its narrow, upright, columnar growth habit and abundant, fragrant, single white flowers. It is an excellent choice for containers or tight spaces.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck young plants into well-prepared soil in spring.
- Mist cuttings frequently to maintain humidity during rooting.
- Water regularly, keeping soil moist but not waterlogged.
- Prune after flowering to shape and remove dead wood.
- Mulch around base to conserve moisture and suppress weeds.
- Fertilize in early spring with a balanced acid-loving plant fertilizer.
Pro Tip
Plant in well-draining, acidic soil with partial shade for best results.
Keep It Thriving
Care Guide
Do
- Water consistently to keep soil moist 🌱
- Prune after flowering to maintain shape ✂️
- Mulch regularly to retain moisture
- Fertilize with acid-loving plant food in spring
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t expose to full, harsh sun 🌞
- Avoid heavy pruning in late fall ❌
- Do not plant in alkaline soil
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Pest Check | ||||||||||||
| Prune | ||||||||||||
| Winter Prep |
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
Gardenia jasminoides Diamond Spire questions
What zones can Gardenia jasminoides Diamond Spire grow in?
Gardenia jasminoides Diamond Spire is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Gardenia jasminoides Diamond Spire deer resistant?
Not reliably. Deer may browse Gardenia jasminoides Diamond Spire, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Gardenia jasminoides Diamond Spire bloom?
Gardenia jasminoides Diamond Spire typically blooms in late spring through late fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Gardenia jasminoides Diamond Spire need full sun?
Gardenia jasminoides Diamond Spire does best in part shade.
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Keep exploring
Explore the genus
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Hardy in your zone?
Grow Gardenia jasminoides Diamond Spire 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.
