Experts and BHG readers answer.
What can I do to contain the ground cover in my yard?
Some ground covers are more aggressive than others. Consider using well-behaved ground covers such as thyme (Thymus), candytuft (Iberis sempervirens), pinks (Dianthus), or astilbe (Astilbe) in any new beds you start. If mowing fails to keep your errant ground covers in line, try edging around the ground cover bed. You may need to add a physical barrier between the ground cover bed and the lawn or flower bed you’re trying to preserve.