Rose Of Sharon: Late Summer Flower Power!

By Allyn Paul, filed under Landscape Tips, Observations.

rose of sharon up close

rose of sharon up close

It’s now later July, and my Asiatic and Oriental lilies are beginning to fade, but my Gladiolas have not yet bloomed, so what is the DIY gardener to do? Enter: Rose-of-Sharon. (pictured here is “Purple Sky Single Lavender” )

If you’ve every been to Florida and noticed the beautiful, tropical Hibiscus flowers, then you’ll love the Rose of Sharon who’s large hibiscus-like blooms are showy in the mid-to-late summer in zone 5 and early summer in southerly zones. So if you live in the Midwest, this is your key to late July and August perennial flower power!

Sharon grows in sun or partial shade and in any soil. If you grow her in Chicago’s nasty gray, clay soil, be sure to amend with some mushroom compost and a little manure to increase the blooms!

With regular, weekly watering, Sharon will grow quickly, requiring regular pruning. If you have her planted in an open area, you can let her go and she’ll grow around 12 feet tall and 10 feet wide. If you have Rose of Sharon in your regular landscape beds like I do, keep her trimmed regularly using hand pruners;… Just keep the “run-away” limbs in check. Fast growth is not bad thing, however, because you can prune Rose of Sharon into the later spring with no flower loss. Keep her shaped so she doesn’t get away from you.



Rose of Sharon blooms are found in single or double flowers in shades of red, pink, white and purple/lavender, depending on the cultivar. Peak bloom takes place in early August in the Chicago and Northwest Indiana area.

Rose of Sharon have very few problems from insects or fungus, however, in recent years I have found Japanese Beetles feeding on the flowers when no other host plants are near. Other than that, Sharon is low maintenance and does not require dead heading. Some gardeners do panic in early spring as they are unaware that Rose of Sharon is one of the later deciduous shrubs to push out leaves. Trust me, she’s not dead, she’s just sleeping in!

Here are a few names to look for when buying Rose of Sharon:

‘Amplissimus’ – Double, red flowers.

‘Aphrodite’ – Dark pink flowers with a dark red eye.

‘Ardens’ – Double, rose-purple flowers with a maroon blotch.

‘Banner’ – Red and white flowers.

‘Blue Bird’ – Single, sky-blue flowers

‘Blushing Bride’ – Double, rich pink flowers

‘Bulls Eye’ – Large, single, rose-red flowers with a red eye.

‘Candy Stripe’ – Single flowers that are white and pink with red stripes.

‘Coelestris’ – Single, blue flowers.

‘Collie Mullens’ – Double, purple-lavender blooms.

‘Diana’ – Single, pure white flowers

‘Freedom’ – Semi-double, rose pink flowers

‘Hamabo’ – Single pink or pinkish lavender flowers with a crimson eye

‘Helene’ – Large, single white flowers with a dark red eye

‘Jeanne D’Arc’ – Double white flowers

‘Lady Stanley’ – Double, pink flowers.

‘Lucy’ – Double, dark red flowers

‘Minerva’ – Single, lavender flowers are overcast with pink and have a dark red eye

‘Morning Star’ – Double, red and white striped flowers.

‘Paeoniflorus’ – Double, violet-pink flowers

‘Purple Sky’ – Single purple flowers with a red star eye.


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7 Responses to “Rose Of Sharon: Late Summer Flower Power!”

  1. bloggernoob Says:
    4Avatars v0.3.1 v0.3.1

    i can totally tell that you love what you do allyn. ;) u know, my mom would love you. she’s always bringing home “good” dirt from her friend’s house and bringing home new trees and plants. She set up a mini organic vegetable garden.

  2. allyn paul Says:
    4Avatars v0.3.1 v0.3.1

    thanks for stopping by! I love good dirt and wish I had more room for a big veg garden.
    Maybe when this blog makes me millions, I can buy a farm down in Peotone! LOL

  3. bloggernoob Says:
    4Avatars v0.3.1 v0.3.1


  4. Sheena davis Says:
    4Avatars v0.3.1 v0.3.1

    I am trying to find out if anyone knows. I have a rose of sharon, it stands about 12 ft. This spring I found clusters of tiny black eggs or bugs on the leaves and on the branches..they are usually all clustered and very small and black..If I touch them they smear as if they are very soft..Black and dark brown..Please if anyone knows what this is I am desperate, it killed all my blooms on her last year.

  5. Allyn Paul Says:
    4Avatars v0.3.1 v0.3.1

    sounds like scale (an insect) and you are actually seeing the frass (poop).
    the tree will need to be sprayed with an insecticide throughout the summer.
    Best advice is to go to your local university extension office and let them tell you what to get.
    if not, then get a general purpose tree/shrub spray like Sevin and use it as directed on the label.

  6. Ruth Says:
    4Avatars v0.3.1 v0.3.1

    I just planted 3 Collie Mullens in my yard. After planting I had trouble with leaves turning yellow and falling off. I thought I was giving them too much water but the green leaves were wilted and looked thirsty. Are the leaves turning and yellow and falling off because of being recently planted? I have also read you can prune to grow as a tree. I have one planted on each side of my walkway and am interested in pruning those two to grow as small trees. Any advice you have would be appreciated.

  7. Allyn Paul Says:
    4Avatars v0.3.1 v0.3.1

    Hi Ruth,
    some “transplant shock” is normal for about a week or so. If it persists, then you may have them planted too deep , or too shalllow. you want the original root ball to be a couple inches above the grade. Anything planted in the dead of summer will have a little harder time adjusting anyway.
    if it gets worse, contact me with some pics and we will see what is the problem,

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