EVERGREEN

Plant Encyclopedia

Ipomoea indica

Ipomoea indica (blue dawn flower, "Noasagao")

Japanese name: ノアサガオ (野朝顔)
Scientific name: Ipomoea indica

Ipomoea indica

[Overview]
A climbing perennial.
It grows on seashores, along roadsides near human settlements, at forest edges and similar places.
The stems sometimes grow more than 10 m long.
The leaves are alternate, either deeply divided into 3 lobes or simple and ovate to round, with a pointed tip and a heart-shaped base.
The flowers are blue-purple, funnel-shaped, about 10 cm across, with the upper part spreading and shallowly divided into 5 lobes, each lobe bearing a reddish purple line.
In some plants the whole flower takes on a crimson tinge from afternoon to evening.
The flowers wither in a day.
The sepals are not recurved and have sharply pointed tips.

[Cultivation]
Because it is self-incompatible it does not produce seed, and it reproduces vegetatively.

[Notes]
It is so vigorous and grows so luxuriantly that in the Ryukyu Islands "Asagao" is said to mean this species.
The plant sold under the name "Ocean Blue" is said to be a mutant of this species, but this is not clear.

Details

Names
English: blue dawn flower
Japanese: ノアサガオ(野朝顔)、イリオモテアサガオ(西表朝顔)、宿根朝顔、リュウキュウアサガオ(琉球朝顔)、オーシャンブルー、ケープタウンアサガオ、ナンヨウアサガオ、オオバアメリカアサガオ
Life form
Herbaceous climber
Habit
Terrestrial
Planting (or sowing) season
April, May
Flowering season
June, July, August, September, October, November
Distribution or origin
Japan (Izu Islands, Wakayama; southern Shikoku; southern Kyushu; Ryukyu); Southeast Asia–Australia
Growth form
Climbing
Leaf shape
Simple leaf, Lobed leaf
Leaf arrangement
Alternate
Leaf margin
Entire
Inflorescence
Umbel
Flower color
Purple
Flower diameter
100
Leaf color
Green
Availability of seeds and plants
Low
Form sold
Seedlings
Sun exposure
Full sun
Soil needs
Required
Suitable uses
Parks and gardens, Wall greening
Pests
Aphids, Armyworms, Spider mites, Greenhouse whiteflies

Translated from our Japanese encyclopedia. If anything differs, the Japanese page is correct.

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