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

Costus erythrophyllus

In Singapore: Violet Spiral Flag, Red Wine Costus, Oxblood Ginger (Cultivated in Singapore)

Costus erythrophyllus
Photo: Daderot, CC0

Costus erythrophyllus is a tropical rhizomatous perennial in the ginger-relative family Costaceae, grown for its dark green leaves with purple undersides. It needs warm, humid, shaded conditions with consistently moist soil.

Family
Costaceae (Cost family)
Grows as
Perennial
Light
Part shade, Bright indirect
Water
Keep the soil evenly moist during the growing season and reduce watering slightly in winter.
Soil
Rich, loose, well-draining potting mix with plenty of organic matter.
Temperature
18–30 °C; protect below 10 °C
How easy
Moderate
Native range
W. South America to N. Brazil
Climate
wet tropical

About

Costus erythrophyllus is species of flowering plant in the family Costaceae. It is a tropical rhizomatous perennial plant native to Colombia, Ecuador, Peru, and northern Brazil. It was first described in 1929. The most common form in cultivation grows to about 1 meter in height, with waxy leaves that are dark green on top, and deep purple underneath. In Huambisa, Costus erythrophyllus is known as untuntu.

Other Costus plants

Spiral Ginger · Costus barbatus · Costus chartaceus · Red Tower Ginger · Costus curvibracteatus · African Spiral Flag · Costus malortieanus · Red Rose Ginger · Costus productus · Spiral ginger · Indian Head Ginger · Spiked spiralflag

[Contains information from Leaf Area Index (LAI) and Heritage Trees from data.gov.sg (National Parks Board), made available under the terms of the Singapore Open Data Licence version 1.0]

Text excerpted from the Wikipedia article Costus erythrophyllus 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…