Pending editorial review. Names come from GBIF/POWO; growing details are a draft our editors are still verifying.
Plant encyclopedia

Hibiscus trionum L.

Flower-of-an-hour · Malvaceae

Also known as Hibiscus vesicarius, Ketmia trionum, Ketmia vesicaria, Trionum trionum. Common names: Bladder hibiscus, Bladder ketmia, Bladderweed, Bladderweed hibiscus, Modesty.

Hibiscus trionum, commonly called flower-of-an-hour, bladder hibiscus, bladder ketmia, bladder weed, flower-of-the-hour, modesty, puarangi, shoofly, and venice mallow, is an annual plant native to the Old World tropics and subtropics.

MalvaceaeAnnual
Not currently for sale
Get an alert when a nursery lists it.
Notify me

About Flower-of-an-hour

Hibiscus trionum, commonly called flower-of-an-hour, bladder hibiscus, bladder ketmia, bladder weed, flower-of-the-hour, modesty, puarangi, shoofly, and venice mallow, is an annual plant native to the Old World tropics and subtropics. It has spread throughout southern Europe both as a weed and cultivated as a garden plant. It has been introduced to the United States as an ornamental where it has become naturalized as a weed of cropland and vacant land, particularly on disturbed ground.

Description adapted from Wikipedia, licensed CC BY-SA 4.0.

Growing & care

Growing guide coming soon. Our editors haven't written verified care details for this plant yet. Native range and classification are shown below.
Native rangeAfghanistan, Albania, Algeria, Bulgaria, Cyprus, Czechia-Slovakia, Greece, Hungary, India, Iran, Iraq, Italy, Kriti, Krym, Lebanon-Syria, Libya, Morocco, North Caucasus, NW. Balkan Pen., Pakistan, Palestine, Poland, Portugal, Romania, Sicilia, South European Russia, Spain, Transcaucasus, Tunisia, Türkiye, Türkiye-in-Europe, Ukraine, West Himalaya
ToxicityPets: Not documented · People: Not documented
Marketplace

Where to buy Flower-of-an-hour

Listings come directly from nurseries. Contact them to buy — prices and stock are set by each nursery.

Set your location for distances

No nursery has this plant listed right now

We'll email you as soon as one does. Set an optional price limit or distance.

Similar plants you can buy now