Petunia Autumn Mystery
Petunia x hybrida 'Autumn Mystery'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Annual
Height
12 inches
Width
18 inches
Light
Full Sun, Partial Sun
Water
Moderate
Humidity
Average
Lifespan
Annual
Native To
South American parentage
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Petunia x hybrida 'Autumn Mystery' is a trailing annual with lush, vibrant foliage and trumpet-shaped flowers that display a striking combination of warm autumnal colors, creating a lively garden display. This cultivar is renowned for its exceptional flower color variation and extended blooming period, making it ideal for containers and hanging baskets during the fall season.
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into moist soil in early spring.
- Keep soil consistently moist during germination.
- Place in full sun for best flowering.
- Fertilize monthly with balanced fertilizer.
- Pinch back to encourage bushier growth in mid-summer.
- Deadhead spent flowers regularly to promote continuous bloom.
Pro Tip
Ensure soil drains well and provide full sun for optimal flowering.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist 🌱
- Deadhead to encourage more blooms
- Fertilize monthly for vibrant flowers
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t let soil dry out completely
- Avoid heavy shade which reduces flowering
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Fertilize | ||||||||||||
| Pinch |
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
Petunia Autumn Mystery questions
What zones can Petunia Autumn Mystery grow in?
Petunia Autumn Mystery is hardy in USDA Zone 10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Petunia Autumn Mystery deer resistant?
Not reliably. Deer may browse Petunia Autumn Mystery, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Petunia Autumn Mystery bloom?
Petunia Autumn Mystery typically blooms in spring to frost through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Petunia Autumn Mystery need full sun?
Petunia Autumn Mystery does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Petunia to compare
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Petunia x hybrida 'Royal Velvet'
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Petunia x hybrida 'Vista Bubblegum'
Petunia Picasso in Purple
Petunia x hybrida 'Picasso in Purple'
Petunia
Petunia x hybrida 'Neon'
Keep exploring
Explore the genus
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Hardy in your zone?
Grow Petunia Autumn Mystery 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.
