Blueberry trees are overgrown with shrubs, with significant differences in size and shape, and are often controlled at about 3 meters when cultivated; The height of the high cluster blueberry tree is 1-3 meters; The height of the semi-high shrub blueberry tree is 20-100 cm; Shrub blueberry trees are 30-50 cm tall.

The height of the rabbit eye blueberry tree can reach 10 m, the shorter red bean blueberry tree is 5-25 cm, and the shortest cranberry grows creeping, with the height of only 5- 15 cm.

Blueberry conservation method:

First, sufficient light.

When cultivating potted blueberries, lighting conditions are essential, and they should be placed in bright places to keep enough sunshine. If there is not enough sunshine, it will lead to the stagnation of blueberry growth and make it difficult to blossom and bear fruit. Ensuring good illumination can not only promote growth, but also promote the vigorous growth of leaves and increase the number of flowers and fruits.

Second, the basin soil requirements

Pots should be made of clay tiles, purple clay pots and plastic pots with good air permeability. The diameter of the pot is about 25-30 cm, and the bottom of the pot should have drainage holes. The soil where blueberries are planted should be breathable and permeable, and the ph value should be kept between 4 and 5. Bark, sawdust and straw can be mixed into the soil.

Third, water and fertilizer management

Water and fertilizer management should be done well during the growth period of potted blueberries. Blueberry itself is a wet crop, so it should be watered in time during the growing period to ensure the humidity of the soil. Blueberries should also avoid water accumulation, control the application of water and avoid the problem of rotten roots. Blueberries don't require high fertilizer, so we should apply thin fertilizer reasonably, but we should pay attention to avoid excessive calcium fertilizer, otherwise it will affect the growth of blueberries.

Fourth, appropriate pruning.

In the growth stage of blueberry, we should pay attention to pruning frequently, remove withered flowers, prune withered branches in time, cut short overgrown branches, reduce nutrient consumption and keep the plant beautiful.