Hibiscus are extremely floriferous plants that produce multiple blooms throughout the season. The blooms on hardy and tropical hibiscus plants only last one to two days at most.
Specialty hybrids can have longer-lasting blooms, some lasting up to one week. During the bloom cycle, when one flower drops, a new bud opens. On most varieties, the buds emerge on the branch tips, open in the morning and start to wilt late afternoon, then drop in the evening or the next day.
The bloom cycle repeats from early Spring to late Fall outdoors. Tropical hibiscus can be kept in bloom all year indoors. For hibiscus to bloom, it needs water, sunlight, fertilizer, and a consistent temperature range.
Ideal temperatures are 50 to 70 degrees Fahrenheit degrees Celsisus. Watering and light are the two things you should monitor throughout the season as those will change. Watering hibiscus is a tricky balance because the end goal is to prevent the soil from drying out. Once that happens, the blooming processes start to shut down.
You may only see a slight wilting when the soil dries out, but that is the result of the plant shutting down to preserve energy. Garden hibiscus should be fertilized about once every two weeks. Neither require any fertilizer during the winter months. Fertilizers with a bit of extra magnesium and iron will help them to bloom especially well. When planting hibiscus in the garden , make sure there are about feet between each plant. Do a little pH test of the soil if you think it might be more on the alkaline side— hibiscus does best in slightly acidic soil, and you can make conditions a bit more ideal by mixing in some loam.
The first rule of hibiscus care: always water them with warm water. Container hibiscus should be watered daily, whereas garden hibiscus needs to be watered about every other day. As for sunlight, hibiscus plants like lots and lots! The more direct sunlight, the better they will bloom. Hibiscus care can sometimes be a labour of love, but the resulting blooms that keep reappearing for months on end are totally worth it.
Hardy hibiscus species typically grow in U. Department of Agriculture's plant hardiness zones 5 to 9. Growers may worry about their perennial hibiscus' winter appearance and fear that the cooler weather has killed it. Clemson Cooperative Extension advises that old stems can then be cut back to the ground. That's because these plants are herbaceous perennials and when the weather gets cold in winter, their tops will die down to the ground.
Never fear, though, because new shoots will come back into lush growth when the weather warms during the spring. You can expect blooms to appear midsummer and continue until fall frost. Tamara Christine has written more than articles for a variety of clients since She holds a Bachelor of Arts in applied linguistics and an elementary teaching license.
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