Basil generally prefers consistently moist soil but not waterlogged conditions. Here are the key guidelines on how often to water basil:

• Outdoors in the garden, basil should be watered about once a week, providing roughly 1 inch of water per week to keep the soil moist and roots growing deep

. During hot weather, watering may increase to every 1 to 3 days depending on temperature and rainfall

• Basil grown in pots or containers needs more frequent watering than garden basil because soil dries out faster. Typically, watering every 3 to 4 days is recommended for potted basil, or even every 1 to 2 days in hot conditions

. Always check the soil moisture by feeling the top 1-2 inches; water when the soil feels dry

• For indoor basil, watering every 4 to 5 days is common, but frequency depends on light, temperature, and humidity. Avoid overwatering by ensuring pots have drainage and never water if the soil is still moist

• Newly planted basil seedlings may require watering every 1 to 2 days to keep soil consistently moist until established

• The best time to water basil is early in the morning to allow leaves to dry during the day and reduce disease risk

In summary, water basil deeply about once a week outdoors, more frequently in pots or hot weather, and always adjust based on soil moisture-water when the top soil feels dry but avoid letting the soil become soggy. Ensure good drainage to prevent root rot and fungal issues.