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

Brazilian Petunia

Ruellia elegans

Also called Brazilian Ruellia

Brazilian Petunia
Photo: Kurt Stüber [1], CC BY-SA 3.0

Ruellia elegans is a subshrub from eastern and southern Brazil, grown for its soft green mounds and scarlet tubular flowers that appear from spring until first frost. It is often treated as an annual but reseeds and behaves like a perennial in mild climates.

Family
Acanthaceae (Acanthus family)
Grows as
Annual, Perennial
Light
Full sun
Water
Water regularly so the soil stays moist, especially in full sun, and let the top layer dry slightly between waterings.
Soil
Well-drained, fertile garden soil or a rich potting mix.
Temperature
18-30 °C; protect below 10 °C
How easy
Easy
Native range
E. & S. Brazil
Climate
wet tropical

About

Ruellia elegans is a species of flowering plant in the family Acanthaceae. It is a subshrub native to eastern and southern Brazil, where it grows in the Cerrado ecoregion.

It is used as an ornamental plant, and it is pollinated by hummingbirds. Large scarlet-red blooms on & off from spring until first frost. Can take full sun with adequate moisture like in a tropical location but best in shade.

Other Ruellia plants

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

Text excerpted from the Wikipedia article Ruellia elegans 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.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

Credits & terms

Identify a plant

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

Your photo
Starting camera…