How can I successfully transplant watermelon seedlings to ensure they thrive in their new environment?

To successfully transplant watermelon seedlings, ensure the new environment has well-draining soil, plenty of sunlight, and consistent watering. Dig a hole slightly larger than the root ball of the seedling, gently remove it from its original container, and place it in the hole. Cover the roots with soil, water thoroughly, and continue to water regularly to help the seedling establish itself in its new home.