Photo by Melody

PlantFiles: Heartleaf Rosemallow
Hibiscus martianus

Family: Malvaceae (mal-VAY-see-ee) (Info)
Genus: Hibiscus (hi-BIS-kus) (Info)
Species: martianus

Synonym:Hibiscus cardiophyllus

» View all varieties of Hibiscus

7 members have or want this plant for trade.

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12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

24-36 in. (60-90 cm)

USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Bloom Color:

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall


Other details:
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping

Soil pH requirements:
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
From herbaceous stem cuttings

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds
Seed does not store well; sow as soon as possible

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By butterflybyrob
Thumbnail #1 of Hibiscus martianus by butterflybyrob

By Calalily
Thumbnail #2 of Hibiscus martianus by Calalily

By RonniePitman
Thumbnail #3 of Hibiscus martianus by RonniePitman

By frostweed
Thumbnail #4 of Hibiscus martianus by frostweed

By frostweed
Thumbnail #5 of Hibiscus martianus by frostweed

By Todd_Boland
Thumbnail #6 of Hibiscus martianus by Todd_Boland

By frostweed
Thumbnail #7 of Hibiscus martianus by frostweed

There are a total of 9 photos.
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2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive frostweed On Aug 22, 2006, frostweed from Josephine, Arlington, TX (Zone 8a) wrote:

Hibiscus martianus is a lovely flower Endemic to Texas.

Positive Calalily On Aug 9, 2005, Calalily from Deep South Coastal, TX (Zone 10a) wrote:

This plant is also known as Hibiscus cardiophyllus. It is native to Texas. It will survive in zone 8 with mulch in the winter. In the southmost tip of Texas where I live, it needs some shade during the heat of the day and stays green all year unless we have a frost. Seeds will germinate best if planted immediately when ripe. They take a while to germinate, and the germination can be erratic.


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

Tucson, Arizona (2 reports)
Arlington, Texas
Austin, Texas (2 reports)
Houston, Texas
Longview, Texas
Los Fresnos, Texas
Missouri City, Texas
New Waverly, Texas
Uvalde, Texas

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