Also, make sure the lawn has no problem areas guests may step in unknowingly. Consider the heat when planning the wedding's time. This includes both the starting time and the length of the ceremony. If the reception is also outdoors, make sure there will always be sufficient light for guests to see. Outdoor wedding ceremonies should typically be kept short.
Receptions can be longer as guests can move around and get drinks.
Be sure to provide plenty of seating for everyone. Stevenson planned one outdoor wedding in June with temperatures in the high 90s. Keeping everybody from getting too hot was a major effort. Both were desperately needed. Valets were provided to park cars in the proper places.