Hibiscus trionum
Flower-of-an-Hour
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Flower-of-an-Hour (Hibiscus trionum) - Description
Hibiscus trionum, commonly called Flower-of-an-Hour, bladder hibiscus, bladder ketmia, bladder weed, flower-of-an-hour, flower-of-the-hour, modesty, puarangi, shoofly, and venice mallow, is an annual plant that is native to the east of the Mediterranean in the Levant, 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.
Flower-of-an-Hour (Hibiscus trionum) - Blooming
The large, well-known flowers bloom in late spring to fall in colors such as, red, white, pink, yellow, and orange. Each bloom will last only a day or so. To promote continued blooming, remove faded flowers before they form seeds.
Flower-of-an-Hour (Hibiscus trionum) - Growth
They do best in full sun, but react poorly to drought and frost.
Flower-of-an-Hour (Hibiscus trionum) - Planting
If dividing a perennial Hibiscus, do so in the spring. If you are growing from cuttings, take 5-6" of new growth and remove the lower leaves. Stick into a mixture of sand and peat at a 3 to 1 ratio. Once cuttings have formed roots, you can transplant.If planting seeds, soak them in warm water for an hour before planting. Either start indoors 12 weeks before the last frost, or outdoors after the frost has past. You can also sow seeds directly in the fall, as soon as the seed casing has begun to split.
Flower-of-an-Hour (Hibiscus trionum) - Pest
Hibiscus plants are susceptible to giant whiteflies and should be controlled by using Neem oil.
Flower-of-an-Hour (Hibiscus trionum) - Interesting facts
Agua de Jaimaca, a drink made from the flowers of the Hibiscus sabdariffa, sugar, and water, is popular in Mexico, and tastes similar to cranberry juice. A Hibiscus flower worn behind one ear or the other traditionally shows the marital status of Hawaiian women. Over the left ear, and thus over the heart, means your heart is taken. Over the right ear means that you are available.
Flower-of-an-Hour (Hibiscus trionum) - Soil and irrigation
Hibiscus plants require a rich, organic loam soil that is acidic and needs to be kept moist. These plants also require regular irrigation.
