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PlantFiles: Monarch Rosemallow, October Rose, Ruby Hibiscus
Hibiscus radiatus

 
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Family: Malvaceae (mal-VAY-see-ay) (Info)
Genus: Hibiscus (hi-BIS-kus) (Info)
Species: radiatus (rad-ee-AY-tus) (Info)

2 vendors have this plant for sale.

4 members have or want this plant for trade.

Height:
6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)

Spacing:
4-6 ft. (1.2-1.8 m)

Hardiness:
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)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)

Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade

Bloom Color:
Magenta (Pink-Purple)

Bloom Time:
Late Summer/Early Fall

Foliage:
Grown for foliage
Evergreen

Other details:
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:
Unknown - Tell us

Propagation Methods:
From herbaceous stem cuttings
From woody stem cuttings
From softwood cuttings
From semi-hardwood cuttings
From hardwood cuttings
From seed; direct sow after last frost

Seed Collecting:
Bag seedheads to capture ripening seed
Allow seedheads to dry on plants; remove and collect seeds
Wear gloves to protect hands when handling seeds

By Floridian
Thumbnail #1 of Hibiscus radiatus by Floridian

By Floridian
Thumbnail #2 of Hibiscus radiatus by Floridian

By Floridian
Thumbnail #3 of Hibiscus radiatus by Floridian

By Floridian
Thumbnail #4 of Hibiscus radiatus by Floridian

By Floridian
Thumbnail #5 of Hibiscus radiatus by Floridian

By onalee
Thumbnail #6 of Hibiscus radiatus by onalee

By jnana
Thumbnail #7 of Hibiscus radiatus by jnana

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorComment
Positive onalee On Oct 27, 2003, onalee from Brooksville, FL
(Zone 9a) wrote:

This is an EASY to grow shrub that propagates EASILY from cuttings - even green stem cuttings will live with little effort! The flowers are beautiful - amazingly deep burgandy red and the plants are covered with them in the fall (zone 9). These grow fast enough to plant in spring and have plants over 10' high by fall and covered with blooms.

Negatives: The seed pods have tiny, clear, barb-like thorns in them that will get ALL OVER YOU and stick in your skin and break off when you try to get them out. Wear not only gloves but GOGGLES, LONG SLEAVES, ETC and don't try to open the seed pods in a windy place or those thorns will be all over you.

These also will spread rampantly from seeds. One bush last year produced so many babies, we had to pull them up like WEEDS. If you leave them too close together they will be too tall and the wind will break them. Space them AT LEAST 2 feet apart or more! Keep the top trimmed during the summer to promote more of a bush than a tall stem to keep the wind from breaking them.

Even with the negatives - I love these plants - they are a show-stopper when in full bloom in the fall!

Regional...

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

Brooksville, Florida
Hollywood, Florida (2 reports)
Lutz, Florida
Sarasota, Florida
Barbourville, Kentucky
Lumberton, Mississippi
Mathiston, Mississippi
Beaumont, Texas



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