Plant Wiki

The open plant encyclopedia

Know any plant.
Grow it well.

Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.

  • 13,000+plants with full pages
  • 365,000+plant species worldwide
  • 220+countries covered

Common in

See all

The plants people record most in your country, and ones that grow there wild.

What do you want to do?

Popular plants

Browse all plants

See them in 3D

All plants in 3D

Browse plants

Filter by what you want to do, shape, origin, country, care and safety.

Plant Wiki › Browse plants

Wild petunia

Ruellia

Also called Ruellias, Wild Petunias

Wild petunia
Photo: J.M.Garg, CC BY-SA 3.0

Ruellia is a large genus of flowering plants, often sold as wild petunias or ruellias, many of them grown as ornamentals. Most are easy, tolerant plants that do well in warm conditions with good light.

Family
Acanthaceae (Acanthus family)
Light
Full sun, Part shade
Water
Water when the top of the soil feels dry, keeping it evenly moist during active growth.
Soil
Well-drained, fertile potting mix or garden loam.
Temperature
18–30 °C; protect below 10 °C
How easy
Easy
Safety
Toxic

About

Ruellia is a genus of flowering plants commonly known as ruellias or wild petunias. They are not closely related to petunias (Petunia) although both genera belong to the same euasterid clade. The genus was named in honor of Jean Ruelle (1474–1537), herbalist and physician to Francis I of France and translator of several works of Dioscorides.

Numerous formerly independent genera are nowadays considered synonymous with Ruellia, including Blechum, Eusiphon, and Ulleria. Acanthopale and Polylychnis are considered a distinct genera.

Other Ruellia plants

Ruellia affinis · Ruellia asperula · Browne's Blechum · Tropical wild petunia · Brazilian wild petunia · Brazilian Petunia · Fringeleaf wild petunia · Monkey Plant · Softseed Wild Petunia · Limestone wild petunia · Minnieroot

Text excerpted from the Wikipedia article Ruellia by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Credits & terms

Identify a plant

Point at a leaf or flower and snap. One plant in frame works best.

Your photo
Starting camera…