Are blueberry saplings frost-tolerant? Blueberry saplings are hardy. They can tolerate the low temperature of-10℃. There are wild blueberry trees in the north, but the cold tolerance of potted blueberry seedlings is worse than that of ground planting. When planting potted blueberries in winter, the potted blueberries should be moved indoors to the sunny place, and the ambient temperature should be controlled at about 20℃ to avoid poor plant growth.
Warm-keeping measures for blueberry saplings When planting blueberry saplings in winter breeding grounds, warm-keeping measures should be taken. Straw rope or cotton cloth can be used to wrap the trunk of plants to avoid frostbite of blueberry seedlings, and soil can be piled at the roots of blueberry seedlings to raise the temperature of the land and maintain the normal growth of blueberry seedlings.
How to prune blueberry seedlings in winter? If you want to have a smooth winter, you should prune blueberry seedlings. You can shorten the branches that grow too long every year from11-65438+February to avoid the loss of excess nutrients. In addition, you should also cut off the dense branches and thin branches of blueberry seedlings to improve the light transmittance between plants and make them grow strong new branches in the second year.
Maintenance method of blueberry saplings in winter When cultivating blueberry saplings in winter, it is necessary to topdress the plants once before winter. You can choose rotten cake fertilizer or organic fertilizer to improve the cold resistance of blueberry seedlings, but it is best not to fertilize blueberry seedlings after winter, so as not to cause harm to plants, and you can wait until spring.