Get those tropical vibes in your landscape year after year with Hibiscus syriacus and Hibiscus moscheutos! Because fortunately, unlike their tender tropical cousins, both of these are hardy enough to easily withstand our PNW winters! And of course, the pollinators love their late-season blooms! 

 

Hibiscus syriacus, also known as Rose of Sharon or Chinese hibiscus, is an upright deciduous, shrub or small tree with multiple trunks. This easy-to-grow, undemanding plant, is happiest in full sun, prefers moist, well-drained soil, but is tolerant of many growing conditions, including periods of drought and exposure to pollution, making it an excellent option for urban gardens.

A single Rose of Sharon can add interest to a corner of the garden or create a sense of height in a flowerbed.  To train it as a small tree, prune the canopy to about one foot above the ground.

While shaping or pruning can be done at any time, pruning in late Winter or early Spring minimizes the loss of emerging flower buds on the new growth.

Hibiscus moscheutos, also known as Rose Mallow, perennial hibiscus or swamp hibiscus, is a fast-growing, cold-hardy perennial. The rose mallow plants grow as a single branched stalk that emerge from the ground in Spring. The plants can grow several inches a day, reaching heights of 6-8′, where hoge blooms, (sometimes as large as dinner plates!), form at the tip of each upright cane toward the end of Summer.

And as they tend to be very tall and narrow, they work well for narrow spaces, against a fence or wall, or in the back of a perennial border where it can rise up and put on its show in late Summer when most other perennial flowers are fading.

Though rose mallows are perennials that can take inter temperatures down to minus 20 degrees Fahrenheit, the upper growth of rose hibiscus plants tends to die back to the ground over the winter even in the mildest climates.There are just a handful of these left for the season.