Buzz
Golden lemon trees are quite hardy and can thrive even in hot climates. To create the best environment for the tree, learn when to bring potted plants indoors and ensure they receive plenty of water to avoid drying out. Once the tree reaches 2-3 years of age, you can harvest 10 to 30 golden lemons annually!
Steps
Create an Ideal Environment for the Tree
Plant the tree outdoors if you live in a mild, warm climate. If nighttime temperatures do not drop below 5°C, you can grow golden lemon trees in pots placed outside. When the weather becomes harsh, bring the plant indoors for safety.
- In regions with year-round sunlight for at least 8 hours a day and temperatures never falling below 5-7°C, you can plant the tree directly in the ground outdoors.
Did you know? Golden lemon trees thrive in small forests in regions like India, Italy, California, and Florida.
Grow golden lemon trees indoors during the colder months. When temperatures drop and frost sets in, bring the plant inside and place it in a sunroom, porch, greenhouse, or any room with ample sunlight. Frost can kill golden lemon trees, so monitor weather forecasts closely to bring the plant indoors in time.
- Dwarf golden lemon varieties are ideal if you plan to move the plant indoors during winter. These trees produce abundant fruit without growing too large to handle. They can reach a maximum height of 1.5-2 meters, but you can prune them to maintain a smaller size if desired.
Maintain an ideal temperature range of 10-21°C. During summer months, the tree will tolerate daytime temperatures above 21°C as nights are cooler. If growing golden lemon trees indoors, ensure temperatures do not drop too low or rise too high. Especially in winter, when the air is drier, it’s crucial to prevent the tree from overheating.
- In particularly dry climates, use a humidifier when bringing the plant indoors to maintain an optimal humidity level of 50%. In regions suitable for outdoor growth, humidity is less of a concern.
Ensure the tree receives at least 6-8 hours of sunlight daily. Place the tree in a spot with direct sunlight, avoiding areas shaded by other plants. Depending on the season, move the tree around your yard to maximize sun exposure. If growing indoors, adjust the tree’s position seasonally to ensure it gets enough light.
- If you live in a consistently cloudy or overcast area, consider purchasing a grow light, available at nurseries or online.
Keep the tree away from heaters and heat sources. When growing golden lemon trees indoors, avoid placing them near heat sources, as excessive heat can dry out the leaves and soil. While natural sunlight and warmth are beneficial, excessive dry heat can harm the plant.
- If possible, place the potted golden lemon tree in a room with a ceiling or standing fan. Air circulation promotes healthy growth. Run the fan continuously or as many hours a day as possible.
Fertilizing and Watering the Tree
Choose a well-draining pot that is 25% larger than the root ball. The root ball consists of the roots and the surrounding soil. If you purchase the tree from a nursery, it may already be in a suitably sized pot – but confirm with the seller. If repotting is necessary, opt for a 20-liter pot for a 2-3-year-old tree or a 40-liter pot for larger trees.
- Pots larger than 60 liters can be difficult to move.
Use fertile, well-draining soil to cover the root ball. Choose sandy or loamy soil for better drainage. Avoid clay or alkaline soil. Cover the root ball (roots and surrounding soil) completely, stopping when the soil reaches the base of the tree.
- Golden lemon trees are hardy and can grow in various soil types, but loamy soil is ideal. If possible, test the soil pH and aim for a range of 5.5 to 6.5, the optimal conditions for golden lemon trees.
- If the soil is too acidic, you can add compost or manure to balance the pH.
- If the soil lacks acidity, consider adding lime fertilizer.
Apply fertilizer only to the soil surface to avoid disturbing the roots. Fertilize every 1-2 months during spring and summer, and every 2-3 months in fall and winter. Use citrus-specific fertilizer and apply it to the surface; do not mix it into the soil.
- Spring and summer are growth months, while fall and winter are dormancy periods for the tree.
Water the tree every 10-14 days. Water while slowly counting to 20. Stop when water drains from the bottom of the pot; if no water drains after 20 seconds, continue counting and water for an additional 10 seconds. In particularly dry climates, monitor the soil and leaves. If the soil feels dry or the leaves droop, water more frequently. During the hottest months, you may need to water 1-2 times per week.
- Avoid watering if the top 5 cm of soil is still moist.
Place the tree where water does not accumulate. Although golden lemon trees need plenty of water, they cannot tolerate waterlogging. If placing the pot outdoors, choose a location where rainwater drains away rather than pools, such as on a garden wall or at the top of a slope.
- If your area experiences heavy rainfall, you may need to bring the plant indoors or under a shelter until the rain subsides.
Harvesting and Pruning
Pick lemons when they are firm and reach a size of 5-7.5 cm. Choose green fruit if you prefer a tangier flavor; the more yellow the lemon, the sweeter it will be. Golden lemons continue to ripen even after being picked.
- Lemons may still be green when they reach their maximum size, which is normal. Size is more important than color.
- Lemons left on the tree too long will become mushy.
Gently twist the lemon until it detaches from the branch. Hold the lemon firmly in your hand and twist it; it should come off easily. If preferred, you can also use garden scissors to cut the lemon from the branch.
- Avoid pulling the lemon off, as this can damage the branch or even cause it to break off the tree.
Did you know? Golden lemons aren’t just for cooking and drinks! You can toss them into a garbage disposal to freshen the sink, rub them on faucets to make them shine, or dab lemon juice on acne and blackheads to treat blemishes.
Prune golden lemon trees between March and May to keep them healthy. The best time to prune is after harvesting the fruit but before new buds begin to bloom. Depending on your local climate, pruning can be done anytime from late winter to early spring.
- Pruning is essential for maintaining tree health and encouraging new growth.
Use clean shears to trim half the length of new shoots. Cut branches at a 45-degree angle, and avoid cutting too close to the main trunk. Focus on trimming the longest, most tangled branches, leaving the thicker and sturdier ones intact. Remove low-hanging branches that droop toward the ground.
- Take time to remove dead leaves from branches and clear fallen leaves from the ground whenever you notice them.
Monitor for pests and address issues promptly. Regular pruning is the first step in preventing pests from infesting the tree. If you spot spider mites or aphids, use a hose to spray them off the tree (do this outdoors). If the problem persists or other pests appear, consider using pesticides or horticultural oil to protect the tree – consult an expert and follow instructions to avoid harming the tree. Common pests include:
- Spider mites: tiny red bugs that feed on citrus leaves and shoots
- Mites: small white bugs, more common in colder climates
- Citrus scale insects: small, flat, oval-shaped, wingless creatures covered in a waxy coating
- Citrus whiteflies: small white-winged insects found on the underside of citrus leaves
Tips
- It’s best to plant a mature golden lemon tree from a nursery. Trees grown from seeds can take 2-3 years to bear fruit, requiring prolonged care.
- If growing golden lemon trees indoors, you may need to hand-pollinate for fruit production. This is usually unnecessary for outdoor trees.
- Golden lemon trees are susceptible to various diseases. Learn to identify symptoms and treat them promptly.
What You'll Need
- Humidifier (optional)
- Grow light (optional)
- Well-draining pot
- Loamy soil
- Citrus-specific fertilizer
- Garden shears
- Pesticide or horticultural oil (optional)
