Tall Purple Ruellia
Ruellia brittoniana 'Tall Purple Form'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
24 inches
Width
18 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate, drought tolerant once established
Humidity
Prefers moderate humidity
Lifespan
Perennial
Native To
Central America
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Ruellia brittoniana, commonly known as Mexican petunia, is a perennial shrub characterized by its arching stems, lance-shaped green leaves, and tubular purple flowers that bloom profusely throughout the growing season. The Tall Purple Form cultivar features notably taller growth with more abundant, vivid purple flowers, making it a striking addition to borders and garden beds with its vigorous flowering display.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
We couldn't find this plant listed online right now.
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Planting
How to Grow
- Tuck seeds or cuttings into moist soil in early spring.
- Mist cuttings regularly to encourage rooting.
- Plant in well-drained soil with full sun exposure.
- Water regularly during first growing season to establish roots.
- Fertilize with a balanced fertilizer in spring and mid-summer.
- Prune back after flowering to maintain shape and encourage new growth.
Pro Tip
Ensure well-draining soil and full sun for best flowering performance.
Keep It Thriving
Care Guide
Do
- Water deeply during dry spells 🌱
- Prune to shape and promote bushiness
- Apply balanced fertilizer in spring
Don't
- Overwater to prevent root rot ❌
- Avoid heavy shade which reduces flowering
- Don’t neglect pruning after blooming
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| 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
Tall Purple Ruellia questions
What zones can Tall Purple Ruellia grow in?
Tall Purple Ruellia is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Tall Purple Ruellia deer resistant?
Not reliably. Deer may browse Tall Purple Ruellia, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Tall Purple Ruellia bloom?
Tall Purple Ruellia 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 Tall Purple Ruellia need full sun?
Tall Purple Ruellia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Ruellia to compare
Wild Petunia
Ruellia humilis
Ruellia Strawberries and Cream
Ruellia brittoniana 'Strawberries and Cream'
White Wild Petunia
Ruellia malacosperma 'White Flower Form'
Chi Chi Mexican Petunia
Ruellia brittoniana 'Chi Chi'
Pink Mexican Petunia
Ruellia brittoniana 'Colobe Pink'
Katie Ruellia
Ruellia brittoniana 'Katie'
Keep exploring
Explore the genus
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Grow Tall Purple Ruellia 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.
