Cultivation and management techniques of Canna
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Canna is a herbaceous perennial plant known for its thick rhizome that grows along the stem. It blooms from June through October, producing large and vibrant flowers, while its foliage remains lush and green throughout the summer. These plants are highly valued in gardens during the warm season, adding both color and texture to landscapes. Canna can be planted individually or in clusters, and they have a strong resistance to sulfur dioxide, making them suitable for urban environments.
Canna thrives in sunny and warm conditions, requiring well-drained, fertile soil. During the first week of the growing season, apply a diluted liquid fertilizer, and continue this process for 4 to 5 weeks to support healthy growth. After flowering, it's important to remove the spent blooms promptly to encourage more flowering and maintain the plant’s appearance.
In autumn, apply organic fertilizers rich in phosphorus and potassium to help the plant prepare for dormancy. Once the first frost appears, dig up the rhizomes, cut off the stems and leaves, and allow them to dry for about 10 days. Store the rhizomes in dry sand at a temperature between 10°C and 15°C. Check the storage area every other month to ensure proper ventilation and prevent rot.
Propagation is typically done through rhizome division. In late April, after the winter dormancy period, cut the large rhizomes into sections, each containing 1 to 2 buds. Plant these sections in well-prepared culture soil, covering them with 4 to 6 cm of soil. Water regularly, keeping the soil moist but not waterlogged, until new growth appears. With proper care, canna plants will return year after year, bringing beauty and vibrancy to your garden.