Pruning method: pick heart pruning, seedling period, need to pick off the top grows out of the shoots; Thinning branches and leaves, need to timely growth dense branches and leaves for thinning; Now bud period pruning, now bud period need to prune off the growth of the poor buds; Pruning residual flowers, flowers after the failure of the flowers need to timely pruning off residual flowers. Maintenance precautions: soil mixing method, mixing leaf-rotted soil, vegetable garden soil and sandy soil into cultivation substrate; temperature control and warmth, the room temperature should be stabilized at between 20 and 30 degrees Celsius.
Gardenia pruning method1, centering pruning
Gardenia in the growth period, need to carry out centering pruning, control the overall growth height, stimulate the plant to sprout more new shoots, can be directly pruned off the top of the shoots of the growth of vigorous. When the gardenia grows 2 ~ 3 lateral branches, need to complete the work of playing, make the branch growth more thick, after pruning is completed, also need to timely spray polymyxin solution to the wound disinfection.
2, thinning branches and leaves
In order to make the gardenia grow more exuberant, during the growth period need to regularly observe the plant's growth state, timely pruning off the too long, too dense branches, increase the ventilation and light transmission between plants. In addition, it is also necessary to prune the weak and diseased branches to reduce unnecessary nutrient consumption, so that the nutrient supply can be concentrated to the healthy flower branches
3. Pruning during the bud stage
After the gardenia enters into the bud stage, it is necessary to prune off the buds which are dense, weak and deformed, as well as those which are not strong enough to grow well. This saves nutrients and space for healthy buds, which improves the quality and quantity of blooms. Once pruning is complete, the environment should be ventilated to minimize the growth of bacteria and speed up recovery.
4. Prune the remnants
Gardenia flowers usually open in early summer, and need to be pruned after the flowers fade. You need to prune off the failed flowers to make the gardenia grow back as soon as possible, and also to reduce the breeding of diseases. Note that if there are a lot of dead leaves, you need to prune them to ensure the beauty of the plant.
Gardenia care notes1, soil preparation
Gardenia is suitable to grow in loose and breathable slightly acidic soil, soil preparation can be a mixture of rotting leaf soil, garden soil and sandy soil to make the substrate for cultivation. Before potting, it is necessary to retain some of the root mass, so that it can resume growth as soon as possible. The pots should also be replaced in April and May each year to allow the roots to grow better and to avoid the soil from becoming compacted.
2, temperature control and warmth
Gardenia is suitable to grow in the environment of 20 ~ 28 ℃, in the end of spring and early summer every year, the temperature is high, you need to do a good job of shade and sunscreen work, you can transfer the plant to a ventilated shady environment for maintenance, and in mid-October you can Transfer to indoor care, stabilize the room temperature at 5 ℃ or more, in the sunny days at noon can be transferred to the outdoor light, to promote flowering.
3, water and fertilizer management
spring and autumn two seasons, gardenia is in the growth of the peak period, can be every 2 ~ 3 days watering, summer every 1 ~ 2 days watering, winter every 5 ~ 7 days watering, before potting need to be potting soil mixed into a sufficient amount of basic fertilizer. The watering should be done every 5 to 7 days in winter. Growth period, every 10 days to apply a thin cake fertilizer water, 2 to 3 times the fast-acting phosphorus fertilizer. After the autumn need to stop fertilizer, to avoid the branches and leaves to grow.