Rose of Sharon Growing & Caring Guide

The rose of Sharon bush blooms in a rainbow of colors in the summer, including white, red, pink, and purple.

Rose of Sharon is a simple and low-maintenance way to brighten up a garden in the summer.

It attracts pollinators such as birds, butterflies, and other insects with its large, brightly colored flowers.

How to Grow a Rose of Sharon

Rose of Sharon, scientifically known as Hibiscus syriacus, requires little attention.

After planting the rose of Sharon, the plant may thrive even if it is neglected for a while.

However, if you want this showy shrub to be a valuable addition to your landscape, you’ll probably need to give it some attention, especially in terms of shaping it with pruning.

An East Asian native that can thrive in nearly all of the USDA plant hardiness zones, Althea is also known as the shrubby name for this 9-12 foot (2.5-3.5 m) specimen.

It can be used as a privacy barrier with a spread of 10 feet (3 m.).

The reseeding potential of the rose of Sharon should be taken into account when planting it in the landscape.

Plants that appear in areas where they aren’t wanted will need to be removed.

Depending on your preferences, you can either move them to a better location or share them with others.

This shrub prefers full sun to partial shade and prefers well-draining, slightly acidic soil.

Moist, well-draining soil is ideal for the rose of Sharon bush, but it will tolerate most types of soil, except for those that are either too wet or too dry.

Compost or mulch on top of the rose of Sharon bush may be beneficial.

Ongoing Care for Rose of Sharon

Rose of Sharon is susceptible to bud drop. Try to keep the rose of Sharon bush as happy as possible, as this may be a contributing factor to this problem.

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Insufficient water or excessive fertilization can both contribute to bud drop in the rose of Sharon bush, which appears to be a genetic trait.

To get the most out of your rose of Sharon, keep an eye on the weather and keep an eye on the plant’s conditions.

It is possible to keep a growing rose of Sharon in peak condition and in check by pruning it early before buds form on the current year’s growth.

An experiment with your cultivar is the best way to learn to grow a rose of Sharon and keep it under control.

While some trees have lovely drooping branches, others take on an upright shape instead.

When it comes to taking care of the rose of Sharon, it all depends on the shape your specimen takes.


So little pruning is required for this shrub because it grows naturally in an attractive shape.

However, you can control its annual growth to keep it in the desired size and shape.

Late winter or early spring is the best time of year to prune the Rose of Sharon because it blooms on new wood.

Pruning back the tips of stems promotes branching, which in turn promotes the production of more flowers.

Remove any branches that are damaged or diseased as soon as possible.

Propagating Rose of Sharon

Stem cuttings are the best method of propagation for this shrub.

This is a low-cost way to propagate a new plant while also preserving the genetics of a particular variety whose flowers you particularly enjoy.

It’s best to cut in the middle of the summer. In this manner:

  • Cut a four to six-inch stem with a width similar to a pencil. Leaves at the base of the stem should be removed.
  • Stem cuttings should be dipped into rooting hormone before being planted.
  • Fill a small pot with soilless potting mix and plant the lower third to lower half of the stem. Drainage holes must be present in the container.
  • Lightly mist the growing medium with water.
  • Cover the container with a transparent plastic bag.
  • Place the container in a warm, well-ventilated area with plenty of good, soft indirect lighting.
  • Make sure the growing medium is moist by checking it every few days. Do not let it become soggy by adding more water if necessary.
  • After seven days, toss the bag in the trash.
  • You should check for roots after a month or two. If you feel resistance as you pull on the stem, it has rooted. The emergence of new leaves indicates that the stem has been rooted.
  • Before you plant it in your garden, let it grow for at least two inches in the stem.
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How to Grow Rose of Sharon From Seed

In the garden, the Rose of Sharon readily self-seeds, and you can also plant Rose of Sharon seedlings.

Plant seeds indoors approximately 12 weeks before the spring’s last anticipated frost date.

Sow each seed about half an inch deep in the soilless potting mix.

Place the container near a bright window in a room where the temperature stays between 75 and 80 degrees Fahrenheit and mist the soil lightly.

You should see germination in about two to four weeks if you keep the soil consistently moist.


Winter care for Rose of Sharon is not required in its hardiness zones.

It’s best if you can keep it out of the way of any particularly gusty or drying winds.

Mulch around the shrub’s roots can help protect it from cold weather if you live in one of its hardiness zones.

Common Pests

The Japanese beetle is the most common pest on this shrub.

Because of their large size, Japanese beetles are easier to spot and eradicate than other insect pests.

As a result, you’ll probably be able to catch them before they do a lot of harm to your plants.

Picking or shaking them off the plant and dropping them into a container of soapy water is the quickest and most effective way to get rid of them.

Because the insect can only breathe through its skin, smothering it with soap is a surefire way to kill it.

How to Get Rose of Sharon to Bloom

Full sun, adequate nutrients, and moisture in the soil are all requirements for Rose of Sharon to bloom year after year.

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In midsummer, the showy flowers begin to bloom and can last until the first frost.

Tubular stamens adorn the center of the flower’s five prominent petals, which are slightly ruffled.

Bees, butterflies, hummingbirds, and other pollinators are drawn to the blooms.

Deadheading (removal of spent blooms) is not required to encourage reblooming.

The seed pods won’t form, so it’s best if you want to keep seedlings from sprouting in the first place.

Common Problems With Rose of Sharon

In its natural habitat, this shrub is a hardy species.

However, a lack of proper conditions can lead to a number of common problems.

Leaves Turning Yellow

When your shrub’s leaves begin to turn yellow, overwatering is a common culprit.

Check to see if the soil where your shrub is planted is well-drained and avoid waterlogged conditions.

If your shrub is situated in an area with poor drainage, it may be necessary to relocate it.

Not Blooming

A shrub that isn’t blooming properly or at all may be the result of a number of factors.

It’s possible that you pruned too late in the spring and accidentally cut off the buds that would have produced flowers.

Make sure to water your shrub during periods of extreme heat and dryness to keep it blooming to its full potential.

Phosphorus deficiency can lead to lower flower production and smaller blooms, as well.

Find out if your soil has any deficiencies and apply fertilizer if necessary.

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