Ella's Garden Plants from A to Z: Iochroma cyanea, Royal Queen Purple, Iochroma

Common Name: Iochroma

Family: Solanaceae

Genus: Iochroma

Species: cyanea

Cultivar or Variety: Royal Queen Purple

Characteristics of Plant
The name Royal Queen Purple fits this plant so well. This majestic looking plant has dark purple tubular flowers that hang in clusters off the end of the stems. These flowers will bloom from last spring/early summer all the way until frost.

The leaves to touch are of a velvety texture and with proper care the plant can reach a height of 3 feet and almost as wide.

Iochroma is in the same family as Brugsmania and Datura and should be treated as an annual in cool Northern conditions, or shelter provided for the winter in heated indoors.

Because of the hanging tubular flowers this plant has been given by some the nickname mini angel trumpet.

Full sun, well drained soil and regular feedings during the bloom season will keep your plant continuously producing flowers, which are a major attractant for the hummingbirds.

Zone Hardiness up to
Zone 7
Zone 8
Zone 9
Zone 10

Endangered Species


When to Sow Seed
Early Spring

Germination Temperature
70-80 F

Seed Sowing Depth
Lay on top of soil

Seed Needs Light to Germinate

Days to Germination
10-14 days

Sun Exposure
Full Sun

Plant Height
2 - 4 feet

Plant Form


Flower Color

Nutritional Needs


Reproduces By
Stem Fragments

Attractive to Wildlife

Additional Uses

(Image by poisondartfrog)
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