Flower-Of-An-Hour
Hibiscus trionum
Family: Malvaceae
Flower-Of-An-Hour (Hibiscus trionum) is a upright houseplant from the Malvaceae family. Non-toxic to pets. Easy to care for and forgiving.
Complete Care Guide
Light Requirements
Best near south or west-facing windows with sheer curtains. Wants lots of light but not direct sun rays hitting leaves.
Watering
Water when the top 1-2 inches of soil feel dry. Consistent moisture is preferred but brief dry periods are tolerated.
Typical schedule: every 5 days (adjust for season and environment).
Humidity
Average household humidity (40-50%) is usually fine. Misting occasionally or grouping with other plants can help during dry winter months.
Temperature
Keep between 60–80°F (16–27°C). Avoid cold drafts, heating vents, and sudden temperature changes.
Size & Growth
Mature size: approximately 41 inches tall × 30 inches wide. Growth rate is moderate. Habit: upright.
Difficulty Level: 2/5
Easy to moderate care. Forgiving of minor mistakes but benefits from consistent attention. Good for beginners ready for a small step up.
Quick Tips
- ✓Water approximately every 7 days
- ✓Prefers bright indirect light conditions
- ✓Humidity preference: medium
- ✓Keep between 60-80°F
Common Problems & Solutions
Brown leaf tips
Cause: Low humidity, inconsistent watering, or mineral buildup from tap water
Fix: Increase humidity with a pebble tray or humidifier. Use filtered water. Water on a consistent schedule.
Pale or leggy growth
Cause: Insufficient light — plant is stretching toward the nearest light source
Fix: Move to a brighter location. Rotate plant quarterly for even growth.
Drooping or wilting
Cause: Usually underwatering or sudden temperature change
Fix: Water thoroughly and ensure consistent moisture. Avoid cold drafts and heating vents.
Pet Safe
Flower-Of-An-Hour is non-toxic and safe for households with cats and dogs. Verified against the ASPCA Toxic and Non-Toxic Plant Database.
Frequently Asked Questions
Is Flower-Of-An-Hour safe for cats and dogs?▼
Yes! Flower-Of-An-Hour is non-toxic to both cats and dogs according to the ASPCA. Safe to keep in homes with pets.
How often should I water Flower-Of-An-Hour?▼
Water approximately every 5 days, but always check the soil first. Water when the top 1-2 inches of soil feel dry. Consistent moisture is preferred but brief dry periods are tolerated. Adjust frequency based on season — less in winter, more in summer.
How much light does Flower-Of-An-Hour need?▼
Flower-Of-An-Hour prefers bright indirect conditions. Best near south or west-facing windows with sheer curtains. Wants lots of light but not direct sun rays hitting leaves.
How big does Flower-Of-An-Hour get?▼
Indoors, Flower-Of-An-Hour typically reaches about 41 inches (104 cm) tall with a spread of around 30 inches. Growth rate is moderate. Size depends on pot size, light, and care.
Is Flower-Of-An-Hour good for beginners?▼
Yes! With a difficulty rating of 2/5, Flower-Of-An-Hour is very forgiving and suitable for beginners. It tolerates imperfect conditions and bounces back from mistakes.
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