When breeding periwinkle, provide fertile soil mixed with sandy soil and humus in equal amounts, and do not choose clay soil. So that it receives direct sunlight, summer sunscreen, control the temperature between 18 to 24 ℃, appropriate water control, generally 3 to 5 days of watering once to keep the soil slightly wet can be, in the growth period to be every 10 days to carry out a fertilizer to make it thrive.

1, fertile soil

Periwinkle for the soil requirements is fertile and loose and has good drainage, can not choose alkaline and easy to slate, resulting in the roots difficult to breathe clay soil. Generally, you can choose to mix sand and humus in equal amounts to meet the soil requirements of periwinkle.

2, adequate sunlight

Periwinkle is extremely light-loving, in the periwinkle breeding method of adequate light is essential, once the light is not enough, will make the periwinkle leaves yellow and fall. To put the periwinkle in the sunlight, so that it accepts direct sunlight for photosynthesis, summer should remember to shade to prevent sunburn.

3, proper water control

The periwinkle has a low demand for water, and can not tolerate a too wet growing environment, which will affect its growth and development. Generally in the spring and fall season 3 to 5 days of watering once, to keep the potting soil slightly wet can be, more watering in the summer, about 2 days once can be, the winter is to reduce, a week of watering once, to avoid stagnant water in the pot.

4, warm environment

Periwinkle likes to grow in a warm and dry environment, its appropriate growth temperature is between 18 to 24 ℃, the need to control the temperature to prevent the temperature discomfort led to poor growth of periwinkle. In winter, we should pay attention to the temperature can not be lower than 10 ℃, otherwise it will make the periwinkle suffered frost damage, can no longer healthy growth.

5, reasonable fertilization

Fertilizer for the growth of periwinkle is also very critical, in its growth period should be timely fertilization, generally about 10 days after the application of a rotted liquid fertilizer, so that the periwinkle has enough nutrients for growth. Winter and summer do not need fertilizer, to prevent the accumulation of fertilizer leading to root burn rot.

6, reproduction methods

(1) seed propagation

Periwinkle in the propagation can choose to sow propagation, which is a reproduction method with the highest survival rate. Simply pick the seeds of the periwinkle, and subsequently sow the seeds into the soil in March to May, control the temperature at 20 ℃, mulch and water to moisturize, and in about a week it will germinate and grow seedlings.

(2) cuttings propagation

Periwinkle can also choose to carry out cuttings propagation, usually in April to July. On the mother plant to select a robust branch as a spike, the length of about 5 to 7cm can be, and then cuttings into the prepared loose soil, cuttings will be successfully rooted in about 20 days.