Not Getting Enough Nitrogen
Unlike other plants and trees, lemon trees need at least two to three pounds of nitrogen every year. Nitrogen is an essential ingredient that helps strengthen roots and promote growth. However, the nitrogen in store-bought fertilizers has a low bioavailability, meaning your plants might not be getting an adequate amount of nitrogen. To get that extra nitrogen into your soil, you’ll need EM-1. EM-1 contains microbes that feed on these essential nutrients in the soil and release them back to your plants in a form they can easily consume.
Not Pruning Enough
You'll need to prune your lemon and lime trees regularly. Doing this will ensure your fruit trees produce the highest quality of lemons and limes. You’ll notice that the fruit buds will start to grow on the limbs with the best air circulation and light infiltration, which should be your goal when pruning.
Be careful! You don’t want to over-prune your citrus trees. It can result in too much produce during one season. This means the following year may not have the best productivity. Over pruning can also make your branches too weak, so your lemon or lime trees won't be able to combat the colder weather when fall and winter roll around.
If you live in an area that gets below 29 degrees Fahrenheit, your lemon and lime trees won't be able to grow. These aren't the right conditions for growing lemons, and it may be why you aren't seeing any fruit on your trees.
If you live in a colder climate, you can choose to shelter your citrus trees. As long as they're protected from the northern winds but are positioned in a sunny area, you might be able to keep them alive. However, being in a climate under 40 degrees for an extended period can cause frost damage.
Not Getting Enough Water
These citrus trees love water! When you first plant a lemon or lime tree, you'll need to water more frequently, at least every other day for the first week. After the first week, you can start watering once or twice a week, depending on the weather and the season. Watering weekly with EM-1 improves the water permeability of the soil so you can save on cut back the amount of times you need to water which also saves on water costs.