Flower-of-an-hour (Hibiscus Trionum) is a annual herb in the Malvaceae family with easy care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 7-10. This plant is safe for cats and dogs.

Hibiscus trionum is an annual herbaceous plant native to the Old World tropics and subtropics, known for its distinctive pale yellow flowers with dark purple centers.

Flower-of-an-hour

Flower-of-an-hour

Hibiscus Trionum

Hibiscus trionum is an annual herbaceous plant native to the Old World tropics and subtropics, known for its distinctive pale yellow flowers with dark purple centers.

Quick Facts

Type
herb
Lifecycle
annual
Care Difficulty
Easy
Water Needs
Moderate
Light
Full Sun, Partial Shade
Hardiness Zones
7-10

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:loamy, sandy, well-drained
Indoor:No
Outdoor:Yes
Garden Use:groundcover, specimen, pollinator attractor

Care Calendar

Monthly care tasks for Flower-of-an-hour

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
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Jun
...
Jul
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Aug
...
Sep
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Oct
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Nov
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Dec
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Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Flower-of-an-hour
Flower-of-an-hour detail

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Taxonomy

Family:Malvaceae
Genus:Hibiscus