
Mexican Petunia
Ruellia simplex
Family: Acanthaceae
Mexican Petunia grows in full sun to partial shade and prefers moist, well-drained soil. Water needs: Moderate.
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How to Grow Mexican Petunia
Mexican Petunia growing information includes sunlight requirements of Full sun to partial shade, soil conditions listed as Moist, well-drained soil with a soil pH of 5.5-7.5, and Moderate water needs. The listed hardiness zones are 8-11. For propagation reference, the database lists germination or establishment information for Mexican Petunia as 7-21 days, with planting or establishment depth listed as 1/4 inch. Days to maturity are listed as 1-2 years.
Plant Overview
Mexican Petunia (Ruellia simplex) is listed in the Acanthaceae family and categorized as a herbaceous perennial with a perennial life cycle. This profile summarizes growing information for hardiness, light, soil, water, seed starting, maturity, and other available cultivation details. Difficulty is listed as Easy.
- Plant ID
- PLT-2812
- Family
- Acanthaceae
- Plant type
- Herbaceous perennial
- Life cycle
- Perennial
- Difficulty
- Easy
Growing Conditions
Mexican Petunia is listed for full sun to partial shade conditions. Water needs are listed as moderate. The database soil reference is Moist, well-drained soil. The listed soil pH range is 5.5-7.5, and the listed hardiness range is 8-11.
- Hardiness zones
- 8-11
- Sunlight
- Full sun to partial shade
- Soil
- Moist, well-drained soil
- Soil pH
- 5.5-7.5
- Water needs
- Moderate
Seed & Germination
For seed starting, the listed germination time is 7-21 days and the seed depth is 1/4 inch. The listed time to maturity is 1-2 years. Use these values as general reference points and adjust for local climate, seed source, and growing conditions.
- Germination
- 7-21 days
- Seed depth
- 1/4 inch
Harvest & Propagation
- Days to maturity
- 1-2 years
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Growing Reference Note
Plant performance can vary with climate, soil, weather, cultivar, seed quality, and gardening methods. The values on this page are general database reference ranges rather than a substitute for local extension guidance or seed-packet instructions.




