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Limon is simply the spanish version of our Lemon (Citrus limon). The following articles will help with growing your lemon tree: https://www.gardeningknowhow.com/edible/fruits/lemons/how-to-grow-a-lemon-tree.htm, https://www.gardeningknowhow.com/edible/fruits/lemons/growing-lemon-trees-containers.htm, https://www.gardeningknowhow.com/edible/fruits/lemons/learn-about-fertilizer-for-a-lemon-tree.htm Lemon trees typically need to be about 4 years old to fruit. If it is 4 years old and you are not seeing blossoms, it may be that the soil is lacking phosphorous and adding bone meal will help. If you are seeing blossoms but you get no fruit, this is a pollination problem. You can hand pollinate with a small paintbrush. Just go from flower to flower and swirl the brush inside the blossoms.

It's likely a pollination issue. These articles should help: https://www.gardeningknowhow.com/garden-how-to/beneficial/insect-pollination-process.htm, https://www.gardeningknowhow.com/edible/fruits/lemons/lemon-tree-not-fruiting.htm, https://www.gardeningknowhow.com/edible/fruits/lemons/lemon-tree-fruit-drop.htm, https://www.gardeningknowhow.com/edible/fruits/lemons/learn-about-fertilizer-for-a-lemon-tree.htm

It could be a pollination issue. If the blossoms are not getting pollinated, they will shrivel up and drop. You may want to give it a boost by pollinating the flowers by hand. Just use a small paint brush and swirl it around the inside of the flower and repeat on all the flowers on the plant.

Have you fertilized? Nitrogen encourages leaves to grow, but not fruit. Too much can actually keep a plant from producing fruit. This article has information on how to fertilize your trees: https://www.gardeningknowhow.com/edible/fruits/citrus/fertilizing-citrus-trees-best-practices-for-citrus-fertilizing.htm Sometimes when fruit trees produce abundantly and then stop or produce little, the soil may be lacking phosphorus. Add bone meal and have your soil tested. This article will explain more: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm If you have not read it yet, this article may also be helpful: https://www.gardeningknowhow.com/edible/fruits/lemons/lemon-tree-not-fruiting.htm

It may depend on whether or not the tree was seed grown or obtainer from nursery stock. Oftentimes, lemons grown from seed may or may not produce fruit, but if it does produce fruit this may take many years, and when it does produce lemons, the lemons MOST LIKELY, will not be edible or extremely slow growing. Since there's really no way of knowing for certain, you could try adding more phosphorus (bone meal) to the soil to help encourage the flowering and fruit growth.

This article may help: https://www.gardeningknowhow.com/plant-problems/environmental/tips-for-saving-cold-damaged-plants.htm