For people who use lemons often but don’t live in the right climate to grow them outside, this is how to grow a lemon tree from seeds in your home.
What You’ll Need
First off, get the right type of tree. Meyer lemon trees are the most successful at being grown indoors. They provide small or medium lemons that have a good flavor.
Next, start with a large container that has drainage holes. This should be 10 to 15 gallons, which will allow a tree to grow to eight feet with only average growing conditions. (Note, it is important here to share the fact that it can take a long time to grow a tree from a seed and it can be very difficult. Therefore, most people choose to buy a two-year old tree from a local nursery.)
Use peat moss or a mix of soil that is slightly acidic and has sand mixed in to allow the best possible drainage.
How to Start
Have a saucer that will fit under your container and line it with pebbles or gravel. This is where you can add a little water to keep the area around your lemon tree humid.
Put in a layer of the cloth usually used by landscapers to help keep the soil in the container rather than having it run out of the drainage holes with water when you water your lemon tree.
In the bottom of the pot, add a layer of gravel to help with drainage and make sure the roots of your tree will not drown or rot due to excess water.
Fill the container halfway with your soil mix and add the seed.
Keep the soil in the pot moist for the first two inches into the container. This helps the plant have enough to grow without overdoing it.
Next, mist the tree every two or three days to help keep it humid, as the tree is used to being grown in a humid environment.
Keep the average temperature in the room around 70 degrees Fahrenheit to help your tree grow as it would outdoors in the appropriate climate.
Make sure the tree is placed in a south-facing window, since lemon trees grow more in the south and therefore that is the ideal lighting to use. If necessary, add a 40-watt flourescent bulb several inches over the top of the tree to give it the proper amount of light.
Use balanced fertilizer and prune with caution. Dead, broken and diseased branches should be removed to keep the tree growing and the lemons being produced.
Keep an eye out for bugs and any signs of disease, like fungus.
Finally, thin out large clusters of lemons so the tree won’t be overwhelmed. Keep in mind that once the tree grows, it takes lemons between seven and nine months to ripen.
Then, simply wait for your fruit to be ready to eat or use for various household needs.