Hibiscus coccineus is very easy to grow. It grows well near a pond or stream, and really enjoys a soggy spot. We have no pond, stream, or soggy spot in our garden--our Hibiscus is located in ordinary garden soil (that means dry hard clay in Georgia language). Admittedly, I do water it on occasion, but it grows bushier each year--we've had it several years now.
You can grow Hibiscus coccineus if you live anywhere in the south and as far north as USDA Zone 6!
Even before blooms begin in summer, Texas Star is a spectacular presence in the garden. Palmate leaves resemble Japanese Maple foliage and even have a reddish tinge.
Blooms are showy red star-shaped flowers appearing throughout summer and into Fall. The flowers can be up to 6 inches across!
Hibiscus coccineus dies down to the ground in winter but re-emerges in spring. By mid-summer this hibiscus will be 6-8 feet tall and look more like a shrub than an herbaceous perennial.
Texas Star Hibiscus does need full sun to bloom well, and you'll need to water it weekly when rainfall is absent. Also a regular application of compost or composted manure will keep it growing well for you.