The Story
Plant Bio
Iochroma australe 'Princess' is a striking subtropical plant known for its vibrant purple flowers and lush foliage, appealing to hummingbirds and pollinators.
This cultivar is particularly noted for its compact growth and profuse flowering compared to other Iochroma species.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Shrub
Height
96 inches
Width
60 inches
Light
Full Sun, Partial Sun
Zones
8, 9, 10
Water
Moderate
Humidity
Moderate
Lifespan
Perennial
Native To
South America
Toxicity
All parts are toxic if ingested
Bloom period
Mid-summer – Late summer
In flower about 2 months of the year
Planting
How to Grow
- Tuck seeds into well-draining soil in spring.
- Water regularly to keep soil moist but not soggy.
- Mist cuttings to maintain humidity during rooting.
- Provide support for climbing growth early on.
- Fertilize monthly with balanced fertilizer during active growth.
- Prune lightly after flowering to promote bushiness.
Pro Tip
Use a trellis or arbor for best flowering display and growth support.
Keep It Thriving
Care Guide
Do
- Ensure full sun exposure for vibrant blooms 🌞
- Water consistently during dry periods 💧
- Apply balanced fertilizer monthly during growing season
- Prune after flowering to maintain shape
Don't
- Avoid overwatering to prevent root rot ❌
- Do not neglect pruning which encourages healthy growth ❌
- Steer clear of low-light conditions for optimal flowering ❌
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
Princess Iochroma questions
What zones can Princess Iochroma grow in?
Princess Iochroma 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.
Is Princess Iochroma deer resistant?
Not reliably. Deer may browse Princess Iochroma, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Princess Iochroma bloom?
Princess Iochroma typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Princess Iochroma need full sun?
Princess Iochroma does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Iochroma to compare
Keep exploring
Explore the genus
Hardy in your zone?
Grow Princess Iochroma 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.