The white plastic markers that work so well to identify plants in pots tend to migrate away in rain storms and during the freezing and thawing cycles in winter. These stainless steel wires with heavy duty zinc nameplates can be pushed deeply enough into the ground that they won't go anywhere!
 
Double Stainless Steel Wire - 11.5 " tall
Heavy Duty Zinc Nameplate - 3-1/2" x 1-1/4"
 
Black marking pens are sold separately. Once labeled, print should last 3 years before beginning to fade. Then simply retrace the letters to refresh.  Might we suggest also writing on the back? The back will fade slower since it’s not exposed to the sun. 
 
Bulk pricing for quantities of:
50-99: $0.80 each
100+: $0.65 each