If you are a brand new gardener, I recommend direct sowing as much as you can, and adding in a few transplants (like tomatoes) that you either buy or start yourself.
Unless you purchase your transplants, transplanting is more challenging than direct sowing. There are more steps to follow, and a long period of time during which you need to care for seedlings. If you are a brand new gardener, I recommend direct sowing as much as you can, and adding in a few transplants (like tomatoes) that you either buy or start yourself. Unless, of course, you anticipate enjoying the process of growing and caring for seedlings. Growing transplants from seed is one of the most rewarding parts of gardening and it greatly increases your garden’s potential for productivity.