Alert: Limited Online Availability

Now that summer is here, we have limited our stock for online purchase. Find Monrovia plants at your local garden center. Pre-order for 2023 will be available later this year. ×

Mexican Hardy Petunia

Ruellia x brittoniana

SKU
04419
Purple, petunia-like flowers appear continuously throughout the warm season on broad clumps of tall, upright, woody stems with narrow, elongated, dark green leaves. Plant towards the rear of a border or as an accent in a mixed container. Versatile and adaptable to varied conditions, from wet soils to waterwise gardens. An herbaceous perennial.
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8-11

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Keep soil moist to wet.

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More Information
Botanical Pronunciationroo-EL-ee-uh brit-tone-ee-AY-na
Average Size at MaturityModerate growing; reaches 3 ft. tall and up to 3 ft. wide.
Bloom TimeSpring through Summer
Deciduous/ EvergreenHerbaceous
Flower AttributeLong Bloom Season, Showy Flowers
Flower ColorPurple
Foliage ColorDark Green
Garden StyleMediterranean, Rustic
Growth RateModerate
Landscape UseBorder, Container, Poolside
Light NeedsFull sun, Partial sun
Special FeatureEasy Care, Waterwise
Water NeedsModerate
Watering NeedsKeep soil moist to wet.
Companion PlantsTickseed (Coreopsis); Shasta Daisy (Chrysanthemum); Phlox (Phlox); Coral Bells (Heuchera); Butterfly Weed (Asclepias)

Highly adaptable, but thrives in organically rich, well-drained soil; grows vigorously in wet soils and tolerates moderate drought. Blooms best in full sun. Water deeply, regularly during the first growing season to establish an extensive root system; once established, reduce frequency. Prune back old foliage before new growth emerges in spring.

This Plant's Growing Zones: 8-11

USDA Cold Hardiness Zone Map

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Your climate may be too cold for this plant