Concrete pavers make a good mowing strip around flower beds. |
An edge can be "carved" into the ground using a spade. This kind of edging is best used with a grass that is not invasive. |
A walkway is a good boundary for flower beds. It also keeps creeping or invasive plants inbounds. |
A raised bed needs a mowing strip to keep grass from growing up around it. A brick or a flat stone border is a good choice. |