9. Steel Edging
Source: houzz.com
10. Cinder Blocks
Also You can use the small holes for annuals and herbs.
Source: gardenweb.com
11. Wattle border
By Dan Holmes. Branches make excellent trellises or garden towers as well.
Source: sussexgates.co.uk
12. Metal Tubes Border
Source: floradoragardens.blogspot.com
