It is also a good idea to have your soil tested, even if you are not currently dealing with a serious drought. The nutrients in the soil can vary widely between one part of the state and another, as can the pH level and other indications of soil quality. You can have your soil tested by a number of public and private laboratories throughout the state, so there is no reason to put it off any longer.
If you do find that your soil conditions are less than optimal, you can always use additives to make the ground more amenable to growing a lush thick lawn and healthy growing plants and trees. If you want the grass in your lawn to grow strong and healthy and develop a strong root system, you should aim for a pH level of 6.5, and many parts of Missouri are lucky enough to have these great growing conditions.
If bad weather and bad luck have left your soil less than perfectly balanced, you can always choose a grass seed designed for acidic or alkaline growing conditions. Just check the instructions on the bag and look for a grass seed that most closely matches the soil you have to work with.
Soil conditions can change over time, especially when the weather has been especially unpredictable. If there is one thing that is certain in the state of Missouri, it is that the weather is always changing – with drought conditions one year and floods the next. What it all means is that the chemistry of the soil and the growing conditions of the ground can change quite a bit from one year to the next.