Also known as Britton's Wild Petunia · Desert Petunia · Mexican Blue-Bells
Mexican Ruellia (Ruellia simplex) is a vibrant, fast-growing perennial prized for its profuse trumpet-shaped flowers in shades of purple, pink, or white.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun to Partial Shade
75% intensity
Blooms best in full sun, but tolerates partial shade.
Moderate to High
75% intensity
Prefers consistently moist soil but can tolerate brief dry spells.
Well-drained
50% intensity
Warm
75% intensity
Thrives in temperatures between 18-27°C.
Moderate
50% intensity
Feed during growing season to promote flowering.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Non-toxic
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water Mexican Ruellia regularly, especially during its active growing season. Allow the top inch of soil to dry out between waterings. Reduce watering in winter.
Consistent moisture promotes continuous blooming, but avoid waterlogged conditions, which can lead to root rot.
Prune Mexican Ruellia in late winter or early spring to encourage bushier growth and more blooms. Cut back stems by about one-third to one-half.
Deadheading spent flowers will promote further blooming throughout the season.
Mexican Ruellia is easily propagated by stem cuttings or division. Take 4-6 inch cuttings in spring or summer and root them in moist potting mix.
Divide established plants in spring, ensuring each division has roots and shoots.
Repot Mexican Ruellia every 2-3 years in spring, or when it becomes root-bound. Choose a pot one size larger than the current one. Use a well-draining potting mix.
Repotting revitalizes the plant and encourages continued growth and flowering.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Mexican Ruellia (Ruellia simplex)
Where Mexican Ruellia (Ruellia simplex) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Acanthaceae |
| Genus | Ruellia |
| Species | Ruellia simplex |
Similar in genus Ruellia
Answers based on plant encyclopedia data
