Boosting fruiting in a potted lemon plant requires a combination of proper care, the right nutrients, and optimal environmental conditions. Here’s a practical guide:

✅ 1. Choose the Right Pot and Soil
Pot size: At least 18–24 inches in diameter and with drainage holes.
Soil: Well-draining, slightly acidic soil (pH 5.5–6.5). A mix of potting soil, compost, and sand/perlite works well.
✅ 2. Sunlight
Lemon plants need 6–8 hours of direct sunlight daily.
If indoors, place near a south-facing window or use grow lights.
✅ 3. Watering
Keep soil consistently moist, but not soggy.
Water when the top inch of soil feels dry.
Avoid letting the pot sit in water.
✅ 4. Fertilizing (Key for Fruiting!)
Use a citrus-specific fertilizer high in phosphorus and potassium:
NPK ratio around 5-10-10 or 6-3-6.
Fertilize every 4–6 weeks during growing season (spring–summer).
Supplement with micronutrients like magnesium (Epsom salt), zinc, and iron if leaves yellow.
Homemade boost: Mix 1 tablespoon of Epsom salt in 1 gallon of water once a month.
✅ 5. Pruning and Pollination
Prune lightly to shape the plant and remove dead branches.
Promote airflow and sunlight penetration.
Hand pollinate flowers indoors using a small brush or cotton swab.
✅ 6. Stress the Plant Slightly
After flowering begins, slightly reduce water for a short time. Mild stress can encourage fruiting.
✅ 7. Pest and Disease Management
Watch for aphids, spider mites, and scale.
Use neem oil or insecticidal soap if needed.
✅ 8. Repot Every 2–3 Years
Refreshes soil and prevents root binding, which can affect fruit production.