Hibiscus rosa-sinensis - the Chinese hibiscus - is a species of tropical flowering plant in the family Malvaceae, native to East Asia.
It is a bushy, evergreen shrub or small tree growing 2.5–5 m (8–16 ft) tall in its natural habitat, with glossy leaves and 10 cm wide shiny red flowers with prominent orange-tipped red anthers, blooming in summer and autumn.
It is widely grown as an ornamental plant throughout the tropics and is best grown under glass in temperate regions. Plants in containers may be placed outside during the summer months or moved into shelter during the winter months.
Numerous varieties, cultivars, and hybrids are available, with flower colors ranging from white through yellow and orange to scarlet and shades of pink, with both single and double sets of petals.
Sowing & planting
40 - 150
6 - 7
Identify my chinese hibiscus
The species is divided into many varieties and cultivars of horticultural origin. Chinese hibiscus is a persistent, perennial shrub with bushy habit.
The deep, brilliant green leaves reveal during the warmer months beautiful flowers in well-open funnels of 10 to 15 cm in diameter.
The standard species has bright red flowers, but depending on the variety, it can be white, pink, yellow or orange, simple, double or very double. There is therefore something for everyone.
The remarkable flowers of the hibiscus last little more than a day, they are renewed very regularly throughout the summer, provided you provide heat and light. The standard species with red flowers is less fragile and can be planted in a well sheltered area in the southern gardens.
The more fragile varieties will be kept in pots on a terrace or balcony to be wintered inside during the cold season.
Plant my chinese hibiscus
In most cold-weathered areas, plant the hibiscus in a large pot or a beaker pierced at the bottom. Plan for good drainage, with a thick layer of gravel. A simple potting mix is perfect.
In areas where the thermometer very rarely drops below 10 ° C, you may plant your hibiscus in a well sheltered and very sunny area, in well-drained, fertile, neutral to slightly alkaline soil. The hibiscus likes to be installed near a wall that will shelter it from the winds!
Water my chinese hibiscus
Water twice a week in the summer, space the watering when entering the winter, to resume on sunny days. Be careful not to flood the roots and let the soil dry between 2 waterings.
Repot my chinese hibiscus
Repot your Chinese hibiscus at the end of winter before emergence of the leaves.
Choose a pot with a slightly larger diameter, and change the mix by adding some compost. You can add a few small pieces of bananas - it's a good potassium intake! And of course, do not forget the gravel layer for drainage!
Shelter my chinese hibiscus
In the fall and before the temperature drops below 10 ° C, bring in your hibiscus in a sheltered and bright place. It will appreciate a temperature varying between 8 ° to 15 ° C. During all the winter rest, let the ground practically dry, and do not leave water in the saucer after your few waterings.
Put outside my chinese hibiscus
Place your hibiscus outside as soon as any risk of frost is excluded, by gradually acclimatizing it to full sun.
Watch out for evaporation! It is good to bring at this moment a layer of compost, or a mulch that you will renew from time to time, to keep the roots cool. Dead leaves, grass clippings are just the thing!
Protect my chinese hibiscus
If your Chinese hibiscus is in the open soil but you still fear a possible period of cold, do not hesitate to cover his roots with a good pile of dead leaves! Also surround the trunk with a thick doormat (braided rush, reed, rye or rice straw...), maintained by links.
You can also cover it with a wintering cover!
Fertilize my chinese hibiscus
For a natural and cheap fertilizer, bury small pieces of banana peel: potassium will give you a beautiful flowering!
Alternatively, you can add special fertilizer for "flowering plants" after copious watering every 15 days to support flowering.
Prune my chinese hibiscus
Prune your Chinese hibiscus in the early spring: make a light pruning by slightly reshaping the silhouette in March, which will allow it to get better growth and more flowers!
Throughout the season, do not forget to remove the faded flowers, to stimulate the regrowth of other buds!
Check on my chinese hibiscus
Several points to watch for a healthy hibiscus!
Your hibiscus wilts and leaves turn inward: it is often due to excessive heat or too much exposure to the sun. Soak the pot in a basin filled with water for a few minutes - if possible in non-calcareous water.
The leaves are sticky and small insects invade the leaves: it is an attack of aphids! Spray the infested areas gently with a mixture of water with baking soda - at a rate of 5 grams per liter of water - and some black soap.
The leaves fall abnormally ... It is surely an excess of water, let the earth dry between 2 waterings! Also avoid cold drafts or sudden changes in temperature!
The flower buds fall before hatching: this is often linked to dry air: Avoid the proximity of a radiator or a window too sunny. You can also put the pot in a saucer with a bed of pebbles or clay balls lightly covered with water during the driest days!