A Delightful Guide To Growing And Caring For Rose Of Sharon

 Roses Of Sharon

Emma Downey

Emma Downey
Gardening Expert

Updated on 12/4/2022

The Rose of Sharon, also known as Hibiscus syriacus, is a kind of deciduous hibiscus that blooms with an abundance of colorful flowers throughout the summer and fall. The paper-like flowers have five petals and can be found in various hues, including bicolors. Their diameter is around three inches. Blooms may be identified by their conspicuous stamens and their frequently dark-colored throats.

Rose of Sharon, also known as Hibiscus syriacus, blooms with an abundance of colorful flowers. Five petals make up the paper-like flower, which comes in various hues, including bicolors. Around three inches is their diameter. Dark-colored throats and conspicuous stamens distinguish blooms. The Rose of Sharon naturally forms a vase-like shape with its many branches and foliage that ranges in tone from medium to dark green. On the other hand, if you prune this shrub with just one trunk, you may make it look like a tree. Roses of Sharon begin growing either in the spring or the fall, producing between one and two feet per year.

rose of sharon

  • Rose of Sharon, shrub althea, rose mallow, Syrian mallow, and Syrian hibiscus are common names for this plant.
  • Botanical Name Hibiscus syriacus
  • Family Malvaceae
  • Plant of the Genus Shrub
  • Size at Maturity: 8–12 m in height, 6–10 m in width
  • Sun Exposure Full, partial
  • Type of Soil Moist, with Good Drainage
  • Soil pH Acidic, neutral
  • Bloom Time Summer, autumn
  • The color of the flowers might be pink, purple, blue, red, or white, and they frequently have dark throats.
  • Hardiness Zones 5–8, USDA
  • Asia, the Original Home

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How To Care For Your Rose Of Sharon

rose of sharon

This shrub can thrive in various environments, including dryness, heat, humidity, and poor soil. The most common uses for this plant are as a specimen, a hedge, or a foundation plant. It self-seeds rapidly, so if you don't want additional Rose of Sharon in your landscape, you should be prepared to pull out seedlings when they appear.

Young plants will require consistent feeding and watering to get their lives started well. On the other hand, established shrubs often do not need a lot of maintenance. During extended times of drought, you should plan to water, and it is essential to prune the shrub to maintain the ideal form regularly.

  1. A close-up view of a rose of Sharon plant
  2. Pixabay
  3. In full bloom is the Hibiscus syriacus 'Lavender Chiffon.'
  4. Hibiscus syriacus flowers with pink and purple petals
  5. A shrub is known as the rose of Sharon.


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Full daylight, defined as at least six to eight hours of direct sunshine on most days, is ideal for growing Rose of Sharon. However, it may also thrive in environments with some shade. However, the excessive shadow might reduce the amount of blooming that occurs and lead to problems such as fungal infections.



This shrub can grow in various soils, including loamy, sandy, and clay. It grows best in soil rich in nutrients, has good drainage, and has a pH that ranges from slightly acidic to neutral. However, it may survive in somewhat alkaline soil.


Rose of Sharon is most successful when planted in wet soil, but established plants may withstand some degree of drought. It does not do well in extremely dry or highly moist environments. Don't let the earth go completely dry; check to see that your shrub isn't lying in soil too saturated with water.

Temperature As Well As Relative Humidity

These bushes enjoy the heat but can also survive harsh winters with temperatures as low as -20 degrees Fahrenheit, even if they prefer higher temperatures. They can tolerate high humidity levels if they have adequate air circulation. On the other hand, humid circumstances can encourage the growth of fungi.


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Fertilizer is suggested, although it is not required for shrubs that have already become established unless the soil quality is inferior. As recommendations on the product label, apply a slow-release fertilizer in the winter or early spring. In the spring, if you wish to cultivate your plants using organic methods, you should incorporate an inch or two of compost into the soil surrounding the root zone and spread it out in a thin layer.

Different varieties of the Rose of Sharon

Rose of Sharon comes in a variety of varieties, including:

  • This variety, known as "Blue Chiffon," has double blooms (two layers of petals) that have a touch of purple-blue and blossom from the middle of summer well into the fall. It may reach heights of 8 to 12 feet, while its width can range from 6 to 10 feet.
  • The name "Sugar Tip" alludes to the variegated leaves of this cultivar, which have a creamy-white border around their margins. It may grow up to eight feet tall and can be anywhere from four to six feet broad. It features double pink blooms.
  • "White Chiffon" is a cultivar with flowers that are an entirely uniform shade of white and do not have a contrasting neck. The height can reach six to eight feet, and the width can reach four to six feet.
  • The blooms of this shrub, which bears the common name "Crimson Heart," are ruffled and have white petals with dark red centers. Fans of low-maintenance landscaping will be relieved to learn that this particular cultivar is sterile, which means that it will not generate any seedlings that need to be eradicated.



This shrub develops organically into an appealing shape, so it does not require significant amounts of trimming. On the other hand, you can cut its growth each year to keep it at the size and form you want it to be. Because the Rose of Sharon blooms on new wood, it is recommended that the plant be trimmed in the late winter or early spring. It will ensure that no flower buds are removed during the growing season. Cutting the stem tips back during pruning can stimulate additional branching, resulting in more blooms. Remove any damaged or infected branches as soon as you notice them.

Fostering The Growth Of Rose Of Sharon

rose of sharon

Stem cuttings are the most successful method for the propagation of this plant. It is not only a cost-effective method for generating a new plant but also enables you to perpetuate the lineage of a variety whose blooms you particularly enjoy. The middle of summer is the ideal time to collect cuttings. How to do it:

  1. Make a stem about the width of a pencil that is between four and six inches long. Take off the leaves attached to the stem's lower portion.
  2. Should apply The rooting hormone to the end of the branch that has been cut off.
  3. Plant the lower third to the bottom half of the department in a tiny container filled with soilless potting mix. Check to see that the container has holes in it for drainage.
  4. Add just enough water so that the growth medium is barely damp.
  5. Cover the container with a transparent plastic shopping bag.
  6. Place the container in a warm area that receives a lot of bright indirect light.
  7. Make sure that the growth media is still moist every few days. Add more water if necessary, but do not let it become too wet.
  8. After a week, remove the plastic bag from the package.
  9. After one to two months, check for the presence of roots. If you feel resistance when you pull lightly on the stem, that indicates that the branch has rooted. The appearance of new leaf growth suggests that the stem has been implanted.
  10. Before planting it in your garden, wait until the stem has grown at least two inches.

How To Germinate A Rose Of Sharon Seeds And Grow It

rose of sharon

Rose of Sharon can also be planted from seeds among the plants that self-seed in the garden. It is best to start seeds inside around 12 weeks before the date that the last frost is expected to occur in the spring. Plant each seed approximately half an inch deep in a soilless potting mix filled into a container. The soil should be sprayed with a fine mist, and the container containing the ground should be placed in a room with a temperature range between 75 and 80 degrees Fahrenheit. If you maintain an even moisture level in the soil, you should observe germination in around two to four weeks.


In zones where it can survive the winter, Rose of Sharon does typically not require any additional winter care. If possible, it needs to be positioned in a way as to be shielded from windy, icy, and arid gusts of wind. If you reside in a region in its hardiness zone that experiences colder temperatures, adding a layer of mulch over the shrub's roots can help insulate it from the effects of harsh weather.

Commonly Seen Pests

Commonly Seen Pests

The Japanese beetle is the primary pest that threatens the health of this plant. Because of their enormous size, Japanese beetles are more evident than many other types of insect pests, which makes it slightly simpler to get rid of them. It indicates that you will most likely find them before they have caused a significant amount of damage to your plant. Picking or shaking them off the plant by hand and placing them in a container with soapy water is the simplest way to exterminate them. This method is the most effective. Because the insect breathes via its skin, suffocating it with soap would effectively kill it because it will be unable to breathe.

Rose Of Sharon Plant Flowering

If the Rose of Sharon is given whole light, proper nutrients, and sufficient moisture in the soil, it will take reliably blossom year after year. Midway through the summer, the spectacular blooms will begin to appear, and their blooming period can go through the middle of October or even into the winter. The five prominent petals have a faint ruffling on them, and the tubular stamen in the center of the flower is extremely visible. Pollinators such as bees, butterflies, hummingbirds, and other birds are drawn to the flowers. The practice of deadheading, in which wasted flowers are removed, is not required to encourage further flowering. On the other hand, doing so will stop the seed pods from developing; hence, you should do it if you wish to reduce the number of seedlings that emerge.

The Common Problems With Rose Of Sharon

The Common Problems With Rose Of Sharon

This shrub thrives in the habitat that it prefers and is typically hardy. Nonetheless, poor circumstances are a potential contributor to the emergence of some recurring problems.

Changing Of The Leaves To Yellow

When the leaves on your shrub start to turn yellow, the problem is most often caused by overwatering. Be sure that your shrub is placed in the soil with good drainage and that it is not allowed to become soggy while in your care. If the area where your shrub is planted has poor drainage, you may need to relocate it.

Not Blooming

A shrub that isn't flowering well might suffer from some problems. You likely trimmed the plant too late in the spring, so you accidentally eliminated the flower buds. It is also possible for drought to reduce the number of blooms produced by a rose of Sharon, so be sure to provide your shrub with some more water during boiling and dry times. In addition, a lack of phosphorus in the soil can reduce the number of flowers produced and the size of the blooms. Conduct a soil test to determine the nature and extent of any nutrient shortages, and then amend the soil with fertilizer if required.

Frequently Asked Questions