The latest culture method of canna

Canna belongs to the genus Canna of the Canna family. Also known as red banana, Tanhua, popcorn, ginger. Native to the tropics of America and India. At present, it is widely cultivated in the north and south of China, but it can not be overwintered in the north of Hunan Province. Canna has a long history of cultivation in China, which is known as red banana in ancient times. Because of its large green leaves, bright and beautiful colors, tenacious and straight plants, vigorous growth and extensive management, it has always been loved by people. "the leaves of the banana leaves are far away, the calyx is high and the sun is red, like a beauty sleeping in spring, crimson lips and green sleeves dancing in the east wind." Hence the name of Canna. The following is the editor of Qiannong Network to introduce to you the cultivation methods of canna:

Culture environment of canna

1, like warm and humid climate, not resistant to frost, suitable temperature 25-30 ℃, like sufficient sunshine fertile land, no dormancy in the origin, annual growth and flowering; strong sex, strong adaptability, almost no choice of soil, moist and fertile loose sandy soil is better, slightly resistant to water and moisture. Afraid of the strong wind. After planting after frost in April-May in spring, the top of the stem formed flower bud after germination, and the floret opened from bottom to top. In the growing season, the pressure of Reagan stem germinated one after another to form a new stem, which blossomed continuously from June to Frosts Descent, and the total flowering period was long. The rhizome overwinters in the south of the Yangtze River, and the north of the Yangtze River must be protected artificially.

2. Canna is not resistant to cold and is afraid of strong wind and frost. It is not strict with the soil, can withstand barren, and grows well in fertile, moist and well-drained soil. After the plant withered in late autumn, cut off the aboveground part, dig out the rhizome, dry it for 2 minutes, bury it in the well-ventilated sand in the greenhouse, do not water it, and keep it for more than 5 ℃ to survive the winter safely.

Land planting management of canna

After late autumn, usually from the end of October to the beginning of November, the leaves and flowers begin to turn yellow, then the roots and stems can be dug out, cut off the upper branches and leaves, and placed in a non-freezing room, or buried in a sunny leeward cellar in the courtyard, keeping the temperature at 5: 8 ℃. Check 2-3 times during overwintering to prevent heat or freezing. After no frost in the spring of the following year, the rhizome was divided and planted separately. In the south of the Yangtze River basin, the roots do not need to be dug up in winter, but can be dug out and planted in the following spring when new buds grow. After planting, always keep the soil moist, loosen the soil and weed in time. During the growing period, it can be combined with watering and topdressing for 2 or 3 times to promote robust growth.

Pot management of canna

Dwarf varieties should be selected for potted canna. The potted soil should be fertile. Plant 2-3 buds in each pot, pour water after planting, and place them in a place with plenty of light. Topdressing liquid fertilizer before flowering. In the growing period, often keep the basin soil moist, more cake fertilizer and water, can make the plant growth exuberant, luxuriant leaves.

Prevention and control of diseases and insect pests of canna

Canna has strong adaptability and few diseases and insect pests, and it is very easy to cultivate. the main diseases and insect pests are leaf rollers, ground tigers and so on.

1. Leaf curlers

[insect pest symptoms] from May to August every year, it is easy to cause harm to leaf curlers, mainly to tender leaves and inflorescences, and curl after being killed.

[control method] ① sprayed 800x solution of dichlorvos at 50 latitudes. ② sprays 50% fenitrothion EC 1000 times.

2. Ground tiger

[pest symptoms] planting canna occasionally occurs in tigers.

[control method] ① was captured manually early in the morning. ② perfused the root soil with trichlorfon 600 ~ 800 times solution.