Grow a Lemon Tree with a Banana! A fun and natural way to grow lemons at home: 1. Prepare the seeds Wash lemon seeds and dry with paper towel. 2. Slice the banana Cut a banana with peel into pieces and poke small holes. 3. Insert the seeds Put one lemon seed in each hole it helps with germination. 4. Plant in soil Bury the banana pieces in a pot filled with soil. Water to keep it moist. 5. Watch it grow In about 5 days, sprouts may appear. Transfer to a bigger pot as they grow. 6. Homegrown harvest With care and patience, your lemon tree will bloom and fruit!