Tropical hibiscus, Rose of China or Hawaiian hibiscus (Hibiscus rosa-sinensis)
Hibiscus rosa-sinensis, a plant commonly known as Tropical hibiscus, Rose of China or Hawaiian hibiscus is a shrub that can reach 2 to 5m in height.
Its flowers are up to 20 cm in diameter and can have enormous variability.
There are many cultivars that should be propagated vegetatively, by cuttings, since they will not come true from seed.
Plant profileCommon name: Tropical hibiscus, Rose of China, Hawaiian hibiscus
Scientific name: Hibiscus rosa-sinensis
Plant type: Shrubs
Height: 1.5m - 3m
Flower color: Orange, Pink, Purple, Red, White, Yellow
Sunlight: Partial shade
Moisture: Moist but well drained
Garden type: Patio & Container Garden
Planting type: Containers & Pots
Hibiscus need humid conditions, good light and ventilation. They will not tolerate direct sunlight and require temperatures not lower than 12ºC. During summer, plants can be placed outdoors but need to be brought indoors before temperatures drop.
China, India and Southeast Asia.
Tropical hibiscus are from tropical or subtropical climates. The minimum temperature indicated for its cultivation varies from 7°C to 12°C, depending on the variety.
In places with colder winters, it can be grown in greenhouses or in pots that are protected in warm places during the winter.
Partial shade, filtered light.
The soil should remain slightly moist, without excess water.
Plant Rose of China in a well-drained, light, fertile soil, rich in organic matter, with a pH between 6 and 7.
Especially spring and summer, but it can bloom all year round.
Rose of China can be propagated by semi hardwood cuttings of about 10cm.
You can also propagate hibiscus by seed. The seeds should be sown in small pots. Sow at a depth of 0.5 cm in the soil.
Germination usually takes one to four weeks. The seedlings will be ready for transplant when they have 4 to 6 real leaves.