Starting a flower garden for beginners can be an exciting and rewarding experience. First, decide on the type of flowers you would like to grow in your garden. Consider factors such as size, color, seasonality and climate when making this decision. Once you have chosen your desired plants, prepare the soil by tilling it or adding compost if needed. When planting seeds or seedlings, make sure to read all instructions carefully so that they are planted at their recommended depth and spacing requirements. After planting, water regularly and mulch around the plants to retain moisture and protect them from temperature extremes. Lastly, remember to deadhead spent blooms throughout the growing season in order to promote additional flowering!