Photo by Melody

PlantFiles: Rose of Sharon
Hibiscus syriacus 'Red Heart'

Family: Malvaceae (mal-VAY-see-ee) (Info)
Genus: Hibiscus (hi-BIS-kus) (Info)
Species: syriacus (seer-ee-AK-us) (Info)
Cultivar: Red Heart

» View all varieties of Hibiscus

2 vendors have this plant for sale.

33 members have or want this plant for trade.

8-10 ft. (2.4-3 m)

4-6 ft. (1.2-1.8 m)

USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Sun to Partial Shade

Bloom Color:
White/Near White

Bloom Time:
Mid Summer
Late Summer/Early Fall


Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Self-sows freely; deadhead if you do not want volunteer seedlings next season
This plant is resistant to deer

Soil pH requirements:
6.6 to 7.5 (neutral)

Patent Information:

Propagation Methods:
From woody stem cuttings
From softwood cuttings
From semi-hardwood cuttings
From hardwood cuttings

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

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There are a total of 18 photos.
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3 positives
No neutrals
No negatives

Gardeners' Notes:

Positive SummerGirl55 On Jun 30, 2011, SummerGirl55 from Lebanon, PA (Zone 6a) wrote:

This plant provides a great hedge border for privacy. I love all the different colors it provides. Does anyone know how to keep all the little seedlings from being deposited literally everywhere? Thanks

Positive WUVIE On Sep 23, 2004, WUVIE from Hulbert, OK (Zone 7a) wrote:

Indeed a gorgeous beauty well deserving of a pruning
to encourage those gorgeous blooms in larger sizes!
A stunning althaea with a bloody burst in the center
gets their attention every time.

Positive OhioBreezy On Jun 2, 2004, OhioBreezy from Dundee, OH (Zone 5b) wrote:

Grows easily from seed. Can be kept pruned to fit a smaller space if required without harming the plant. Very fast grower! Also blooms later in season when most other shrubs are finished blooming. No scent to the blooms.


This plant has been said to grow in the following regions:

Tuscaloosa, Alabama
Carmichael, California
Crockett, California
Deland, Florida
Fort Walton Beach, Florida
Conyers, Georgia
Chicago, Illinois
Saint Cloud, Minnesota
Saucier, Mississippi
Jefferson City, Missouri
Blair, Nebraska
Kearney, Nebraska
Lincoln, Nebraska
Auburn, New Hampshire
Jersey City, New Jersey
Willingboro, New Jersey
Croton On Hudson, New York
Cleveland, Ohio
Dayton, Ohio
Dundee, Ohio
Glouster, Ohio
Painesville, Ohio
Westerville, Ohio
Hulbert, Oklahoma
Oakland, Oregon
Salem, Oregon
Clairton, Pennsylvania
Coatesville, Pennsylvania
Lebanon, Pennsylvania
Pittsburgh, Pennsylvania
Greenville, South Carolina
Greeneville, Tennessee
Jackson, Tennessee
Summertown, Tennessee
Talbott, Tennessee
Arlington, Texas
Longview, Texas
North Zulch, Texas
San Antonio, Texas
Santa Fe, Texas
Cathan, Washington
Langley, Washington

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