Canna is native to tropical regions such as the Americas, India, and Malay Peninsula. It enjoys warmth, moisture, and plenty of sunshine. It is not cold-tolerant and is afraid of strong winds and frost. The soil is lax, energy-resistant, and grows well in fertile, moist, well-drained soils. After the plants withered in the late autumn, they must cut off the ground parts, dig out the roots, dry for 2-3 days, and bury them in well-ventilated sandy soil in the greenhouse. Do not water it and keep it above 5 degrees to safely overwinter. In the area south of the Yangtze River, it is also possible not to dig up rhizomes in winter. As long as the soil is sealed up, buds can still sprout in the spring of the second year. Canna is very adaptable, relatively extensive in management, not petite, and rarely pests and diseases. Every year from May to August, we must pay attention to roll leaf pests so as not to injure the young leaves and inflorescences. Use 50% dichlorvos 800 times solution or 50% killer pine EC 1000 times solution. Earthworms can be planted with ground tigers, which can be captured manually or with 600-800 dilutions of trichlorfon to control root perfusion. China Agricultural Network Editor
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