When starting to garden it is very important to consider all factors that are important for optimal plant growth such as the soil and climate, amount of direct sunlight, rainfall, etc. as well as different gardening methods and techniques. Yes, there are several methods how to grow vegetables and fruits on which greatly depend size of space you need for growing plants, amount of work and time you will need to invest in gardening as well as the overall success. For that reason you should also be well-informed about different gardening methods. If you bought plant, but don't know what kind of plant it is, a problem will decide the plant or weed identification app.
The conventional method of gardening requires a lot of digging, fertilizing, weeding, pest control, etc. In short, a lot of space, physical work and your time. If you cannot or do not want to spend too much time for mentioned tasks you should learn more about different gardening methods and determine which suits you the best. Regardless which gardening method you choose you are highly recommended to start small because you might find out very soon that it might not be so easy in practice as in theory.
In deciding between different gardening methods such as companion planting, square foot gardening, bio intensive gardening, hydroponic growing, greenhouse gardening, forest gardening and many others you should also keep in mind the conditions require the plants you intend to grow. Take time and think over about different gardening methods very well and learn more about vegetables and fruits you wish to grow and conditions they require for optimal growth.