Flower-of-an-hour, Bladder ketmia
Hibiscus trionum
Annual hibiscus with beautiful yellow or cream flowers with a dark centre. Abundant flowering, blooms last only a few hours. Undemanding, grows well in full sun and part shade.
Stages of growth
Calendar in the garden
How to care
After 2-3 true leaves appear, transplant into individual pots
не требуется
Moderate watering, maintain substrate moisture at 60-70%
- •Use light, friable substrate (peat + sand)
- •Seeds are small, don't bury deeply, press slightly into soil
- •Cover with film until germination, maintain temperature 20-23°C
- •Provide good lighting immediately after germination
Difficulty growing
Suitable for beginners. Minimal maintenance, error-resistant.
Growing conditions
Nice neighbors.
Soil preparation
Planting parameters
💡Preparation Tips
- •Dig the bed to a depth of 25-30 cm
- •Add compost or humus (5-10 kg per m²)
- •If necessary, adjust pH with lime or peat
Frequently asked questions(5)
Sow seeds for seedlings in March at a temperature of 20-23°C. Plant seedlings in open ground at the end of May or beginning of June, after frost danger has passed.
Lack of light, heat above 30°C, excess nitrogen in fertilizers, or too frequent watering can reduce flowering. Provide the plant with at least 5-6 hours of direct sun and use phosphate-potassium fertilizers to stimulate flowering.
Very briefly - one flower lives only a few hours (hence the English name 'Flower-of-an-hour'). However, the bush forms many new buds, so flowering is continuous from June to September.
Wait for seed pods to fully mature and dry directly on the plant (yellowing), collect them, and lay them in a warm place to dry. Store seeds in an airtight container in a cool place; viability is maintained for 2-3 years.
In regions with winter, hibiscus is cultivated as an annual. In warm climates (zone 9-11), the bush can overwinter and grow as a perennial, but growth will be slower. It's easier to grow new plants from seeds each year.
Role in the garden
Benefit information coming soon
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