It is known that an indoor lemon will grow into a lush bush, but will not produce even the most miserable fruit until it is properly grafted.
It happens that even a grafted lemon refuses to bear fruit. In this case, there can be at least 5 contributing reasons.
It is quite possible that the grafting was done incorrectly or with unsuitable material. It is best to use the Meyer or Dioscursia varieties for grafting. But when everything is done according to the latest technology, there may be five more options.
In summer, the room where the lemon grows should be kept at 18-22 degrees Celsius. In winter, it will be comfortable within 12-15 degrees Celsius.
But the humidity in the room should be high. Therefore, the plant is sprayed with settled water at room temperature at least 1-2 times a week. In winter, the air will have to be humidified more often or the heating devices will have to be covered with a wet cloth.
If the lemon does not have enough water, it will start to shed its leaves first, and then it will come to the flowers. Therefore, it is necessary to water the lemon if the pot with the plant has become lighter, the soil has become dry and gray, and the leaves curl up into boats or fall off.
When flowering is abundant, it is better to pluck off some of the buds, otherwise the plant will not have enough strength to bear fruit. The calculation is simple: 1 flower per 10-15 full leaves.
And the last of the main reasons that can ruin a lemon crop is a lack of nutrients, lack of sunlight and unhealthy soil.
Therefore, you need to carefully select a place for lemon growth, provide drainage in the pot, regularly fertilize the soil and monitor its acidity (no higher than pH7).