How Can I Assure Grass Roots Are Dead, In Order To Xeriscape A Former Lawn?

Question

We have dug out all our sod from the last of our front lawn by hand, protecting the locust tree roots running through, and are preparing to create a new landscape with rocks and small evergreen plants, some thyme and vinca. The space is only about 15′ by 15′ (about 300 sq. ft). I would appreciate your suggestions for killing the grass roots, preferably without using toxic chemicals.

Answer 1

There are no guarantees, but a great way to really kill grass for good is solarization. Boiling water may be a daunting undertaking, but it works, as well. This article will give you some ideas:
https://www.gardeningknowhow.com/plant-problems/weeds/how-to-kill-grass-naturally-kill-unwanted-grass-in-your-yard.htm