1. Soil: Gardenia is an indicator plant of acidic soil, so the slightly acidic environment of the soil is the key to determine the growth of Gardenia. The culture soil is made of 70% slightly acidic sandy red soil and 30% rotten leaf material. The soil pH value should be controlled between 4.0 and 6.5.

2. Temperature: The optimum growth temperature of Gardenia is 65438 06℃-65438 08℃. Low temperature and direct sunlight are extremely unfavorable to its growth, so gardenia should be maintained in a well-ventilated, high-soaked and light-filled sparse forest or shade shed in summer. In winter, let it sleep in the sunny environment with the temperature not lower than 0℃. If the temperature is too high, it will affect the flowering in the next year.

Third, moisture: Gardenia likes humid air, and it should be properly watered during the growth period. Usually when the soil is white, you can water it once and pour it thoroughly. It is hot and dry in summer. Spray leaves 2 -3 times a day to increase air humidity and help plants cool down. However, after the flowers are in bud, it is not advisable to water them too much to avoid falling buds. It is better to water dry in winter to prevent the roots from rotting.

Fertilizer: Gardenia is a fertilizer-loving plant. In order to meet the demand for fertilizer in its growing period and maintain the slightly acidic environment of the soil, ferrous sulfate can be mixed into the fertilizer solution in advance for fermentation. After entering the growing season in April, topdressing can be done once every half month (it is best to add more water when fertilizing to prevent burning flowers). This can not only meet the demand of gardenia for fertilizer, but also keep the soil environment in a relatively balanced slightly acidic environment, prevent the occurrence of chlorosis, and avoid the damage to gardenia caused by sudden supplementation of ferrous sulfate and local peracid.

5. Propagation: Although there are many propagation methods of gardenia, the floating water insertion method is the simplest and fastest. First, find a foam board to punch holes, cut off the semi-mature branches of gardenia and insert them into the small holes of the foam board, then put the foam board into a bucket filled with water, and put the bucket in an environment that can not only block the floating board cuttings, but also let the sun shine on the bucket, and control the water temperature at 65438+. The survival rate of cutting Gardenia jasminoides Ellis by this method is 65438 000%.