Basil loves the sun and warmth. Place the pot in a bright location, preferably near a south-facing window, and avoid drafts. A lack of light can cause the leaves to yellow. Basil requires regular ...

When happy, basil grows perky, fragrant leaves that can be plucked ... to pull away from the sides of the plant pot. Other symptoms can be yellowing or curling leaves, as well as general droopiness.