Remove seeds from a ripe lemon
Rinse seeds to remove all pulp
Soak seeds in water for 24 hours
Plant seeds 1/2 inch deep in moist, well-draining potting mix
Use a small pot with drainage holes
Keep soil warm and consistently moist, not soggy
Cover the pot with plastic wrap or a humidity dome
Place in bright, indirect light
Remove cover once seedlings emerge
Transplant seedlings when they have several true leaves
Move to larger pots as roots grow
Water regularly and let the topsoil dry slightly between waterings
Fertilize with a citrus fertilizer after seedlings are established
Keep plants in full sun when possible
Protect from cold temperatures and frost
Be patient, since seed-grown lemons can take years to fruit