Can lemon be grown in the north?

Lemons can not be planted in the north, but potted lemons can be planted in the north. Lemons have higher requirements for temperature, they should be planted in warm winter and cool summer environment, while in the north, the winter temperature is lower, which is not conducive to lemon growth. When planting lemon potted plants in the north, if the temperature is lower in winter, potted lemons need to be moved to a warm indoor for the winter.

Lemons are not hardy and are suitable for planting in areas where the winter is warm, the summer is not very hot and the temperature is stable, while the temperature in the north is relatively low in winter, so it is not suitable for lemon growth and development, so lemons cannot be planted in the north, but potted lemons can be planted in the north. As long as the pot plants are moved to a warm room when the temperature gets lower in winter.

Lemon planting technology

1. Ambient temperature requirements

Lemons like to grow in warm climates and are suitable for planting in southern China. They are shade-resistant but not heat-resistant, so they are best planted in subtropical areas where the winter is warm and the summer is cool.

To select the region with small annual temperature difference, the area where the annual average temperature is 17-19 ℃ is the most suitable for lemon growth, the annual effective accumulated temperature is 5200-6500 ℃, the average temperature in January is 6-8 ℃, the extremely low temperature should be above minus 3 ℃, the annual rainfall is about 1200-1500 mm, and the annual sunshine hours are more than 1200 hours.

The economic cultivation in open field should not be carried out in the areas with annual average temperature below 17 ℃, short-term temperature of minus 5 ℃ and periodic freezing injury.

2. Soil requirements

Lemon is not very demanding for soil and topography, flat land and hilly sloping land are suitable for planting lemon, but it is best to choose slightly acidic soil with loose and deep soil layer, rich in organic matter, strong moisturizing and fertilizer retention capacity, low groundwater level and PH value between 5.5 and 6.5.

3. Protect the fruit in time

Lemon fruit is large, need sufficient nutrients, in the planting process to protect the plant fruit, can strengthen fertilizer and water supply to accumulate nutrients, can also carry out artificial pollination, but also can adopt thinning flowers and fruits. Generally normal leaf-fruit ratio for 30:1 or 40:1, in the planting process, in accordance with the weak to stay strong, the principle of uniform distribution, first, too many dense buds removed, wait until the young fruit size grew to about 1cm, and then remove part of the fruit, in the physiological fruit drop, according to the ratio of leaves to fruit to determine the number of fruit, you can also directly cut off the weak branches, leaving a fruit on the strong branch.

4. Pruning and shaping

The lemon plant is pruned in winter and summer, and the principle of "cutting the density and keeping the thinning, getting rid of the weak and staying strong" should be followed in winter pruning, cutting off the withered branches, short truncated weak branches and overgrown branches without the first space effect; when pruning in summer, the overlong branches are mainly cut short, erasing the summer on the fruiting tree, and cutting off the declining branches in the middle and upper part of the crown periphery.

Matters needing attention in Lemon pot planting

Lemon is a tree species that will blossom and bear fruit in the four seasons, but lemon potted plants planted in the north usually blossom and bear fruit in spring, so it is necessary to control watering after stopping growth a little bit in autumn, and then properly watering after both sides of the leaves begin to roll inward to promote flower bud differentiation. In the process of planting, it is necessary to fertilize regularly into the basin and spray fertilizer on the leaves to cultivate a robust fruiting mother branch.