Big Canna

[Scientific name]Canna x generalis

[alias] French Canna

[Genus] Canna group Canna

It is native to the tropical and subtropical regions of the Americas and is cultivated throughout the world. It enjoys a warm and humid climate. It can grow and bloom year-round at temperatures above 16°C. When the temperature is lower than 7°C, the L-section suffers cold damage, and the underground rhizomes are also affected by cold when the soil temperature is lower than 7°C. Hi loose and fertile, well drained, with a certain degree of resistance to soil. Hi sunny. The canna canna plant is 50--200 cm in height, and the rhizomes are stout meaty, and the stems on the ground are pseudo-stems composed of leaf sheaths. Pseudo-stems and leaves often have a layer of waxy white powder. Leaves large, round to elliptic, lanceolate, entire, leaf color pink green, bright green or bronze, but also red and green mosaic or mosaic mosaic yellow and green varieties. Petals erect, staped, large and beautiful, flower path approximately 12cm. There are red, pink, orange, yellow, yellowish, purple and other colors, petal stamens often red spots at the base, the middle often k color stripes, or with a color edge. The large-scale canna varieties used in our country's gardens mainly include: 'pv. President'; 'cv. En Avant'; 'cv. Eureka'; 'two joe' (cv.Er Qeao ); 'Zi Ye Hong' and so on.

Canna grandis is mainly propagated by dividing rhizomes and ramets, and can also be sown. Dahuamei’s cultivation management of bananas is extensive. The planting density in open field should be 13 to 16 pseudostems per square meter. The growth period requires sufficient fertilizer and water, high temperature and rainy season, moderate moisture control. In cold regions in winter, roots should be dug out after the ground is withered and stored in the room for heat preservation. Common pests and diseases include bud rot, stalk rot, virus disease, rickets, rust, and black spot. The first three are fatal diseases. Insect pests mainly consist of double-lined cynomolgus moths, which can be treated with 90% trichlorfon 1000 times or 10% - 20% pyrethroids 1 000-2000 times. Large flowers canna flower large color, longer flowering period, lush foliage, cultivation and management is easy, the garden is widely cultivated. Can be used as flower beds, flower belts or clusters on lawns, lake shores, pools, or potted plants. In addition, you can also choose different varieties to be configured as special gardens, and the flowering season is extremely spectacular. About 55 species belong to the same genus, and the main ornamental plants are orchid canna (C. x orchiodes); C. edulis, etc.

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