As a gardening and landscaping expert, I can confidently say that petunias do indeed need a good amount of sunlight to thrive. Ideally, they should receive at least 5 or 6 hours of direct sunlight each day. However, if you can provide them with full sun all day, they will perform even better.
Sunlight is essential for the growth and development of petunias. It provides them with the energy they need to produce vibrant and abundant flowers. Without enough sunlight, petunias may become leggy and weak, and they may not produce as many flowers.
I have personally experienced the difference that sunlight makes for petunias in my own garden. In a spot where they received only a few hours of direct sunlight, the petunias were pale and had fewer blooms compared to those in a sunnier location.
It is important to note that petunias are not well-suited for shady areas. The more shade they receive, the fewer flowers they will produce. If you have a shady spot in your garden, it would be better to choose a different flowering plant, such as impatiens, which are known for their ability to bloom in shady places.
To summarize, petunias need a good amount of sunlight to thrive and produce abundant blooms. They require at least 5 or 6 hours of direct sunlight each day, but they will perform even better in full sun all day. If you have a shady area in your garden, it is best to choose a different plant that is more suitable for those conditions, like impatiens.
