We live in Kingwood (9a) and have treated our soil with Lime for several years. It is like baby powder and went on very easily. There was one area that was particularly bad. We tilled in lime and compost. It's still the hardest area in the yard but manages to grow Dwarf Monkey Grass instead of lawn. We continue to add compost and Mulch every year. It works it's way into the soil eventually and we've noticed the difference. The youngest raised bed we have is 8 years old. The soil there is getting better and better.
