Canna is very popular in tropical areas. The plant height of adult canna can reach more than 1 m, its color is bright red, and it can grow well in general. Canna is widely cultivated in gardens and other places because its flowering period is from March to165438+1October every year. At the same time, it has a very good effect on absorbing harmful gases in the air. As a potted plant, it can not only bring good ornamental value, but also improve the environment.

First of all, light

Canna needs to grow in a sunny environment and must be kept for 6-8 hours every day. If the light is insufficient or the plant is born in a dark environment for a long time, the leaves of the plant will gradually turn yellow, and its branches will easily become empty, which will lead to the delay of flowering. In severe cases, plants may also die.

In the flowering period of plants, potted plants need to get enough light, and it is best to put them in the backlight of the sun, so that the leaves of plants are not easy to be burned by excessive light, and they can grow in full sunlight, which is killing two birds with one stone.

Second, the soil

If it can grow in fertile, loose and breathable soil, it is the most suitable thing for canna, even in sticky soil. Generally, soil mixed with sandy soil, garden soil and humus soil is selected, and a small amount of decomposed cake fertilizer or manure can be added to flower lovers if conditions permit, so as to appropriately increase soil fertility. Long-term use of culture soil is easy to cause soil hardening, so it is usually necessary to replace the pot soil once every one or two years to avoid the lack of nutrients in the soil from affecting the normal growth of plants.

Third, moisture.

During the growth of canna, it is necessary to keep the soil moist, and generally water it once every 2-3 days to thoroughly irrigate the soil. If the water is insufficient, plants are prone to yellow leaves, and it is difficult for plants to absorb enough nutrients, thus affecting plant growth.

If there is too much rain or wet weather, it is necessary to water as little as possible to keep the basin soil slightly dry, and it is not advisable to add too much water. Otherwise, plants are prone to root rot or rotten roots, which is very unfavorable to the growth of canna.

Fourth, nutrients

Usually, after plants grow 3-5 true leaves, they need to be fertilized for the first time, and they can be fertilized with decomposed cake fertilizer or organic fertilizer. If it is normal time, it should be fertilized every 10- 15 days. When the flowering period of plants is in autumn and winter, it is necessary to apply less fertilizer or stop applying fertilizer, otherwise it will easily lead to premature withering of plants, but the flowering period should be properly watered, but in winter.