Mexican petunia

Ruellia brittoniana 'Purple Showers'

Photo/Illustration: 
Michelle Gervais
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Mexican petunia (Ruellia brittoniana 'Purple Showers')
roo-EL-lee-a brit-tone-ee-AY-nah
Genus:  Ruellia
This three-foot-tall evergreen shrub bears many tubular, blue or purple, petunia-like flowers on dark stems over a long period. Each flower lasts for just one day. It is a fast grower that may self-seed aggressively. Use in a border, container, or at waterside. Can be grown as an annual in cooler areas.
Noteworthy Characteristics:  Petunia-like flowers from spring to frost. Native to Mexico and the southwestern U.S.             
Care:  Ruellia needs a warm climate. Site in partial shade and fertile, consistently moist, but well-drained soil.
Propagation:  Seed or softwood cuttings in spring. Self-sows aggressively if conditions are right.
Problems:  Nothing serious.

Overview

Height
1 ft. to 3 ft.
Spread
1 ft. to 3 ft.
Growth Pace
Fast Grower,
Invasive/Aggressive Grower
Light
Full Sun to Part Shade
Moisture
Medium to Wet
Maintenance
Moderate
Characteristics
Attracts Butterflies,
Native,
Showy Flowers
Bloom Time
Early Fall,
Early Summer,
Late Spring,
Late Summer,
Summer
Flower Color
Blue Flower,
Purple/Lavender Flower
Uses
Beds and Borders,
Container,
Suitable as Annual,
Waterside
Seasonal Interest
Spring Interest
Type
Perennials

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