Mark locations of wiring for signs. When landscaping, you do not want to accidentally cut into the wires that operate the lights or motion of the sign. Use small wire flags such as those used by utility companies that can be easily seen and pulled up once the project is done.
Outline the landscape bed for the sign. Use spray paint to draw it out on the ground.
Shovel up the grass around the sign. You can use it in other places where there might be bare spots.
Check for drainage of the soil around the sign. Dig a hole and pour water in it. Wait one hour to see if it drains. If it doesn't, then you more than likely have compact or clay soil mixed in it. Add top soil over top of the soil to raise the plant bed, if there are drainage issues.
Contact the zoning department to see if there are any restrictions on planting around signs.
Plant trees, shrubs and flowers around the business sign. Make sure to choose plants that won't grow taller than the lowest point of the sign. You don't want the vegetation blocking the view of your sign.
Plant taller vegetation on the corners, but check to see that they won't get too bushy and obscure the edges of the sign. Do not plant too close to electrical boxes. You want to be able to find these, and electrical equipment might get hot, causing plants to die. It is best to choose vegetation that does not require extra watering and can survive in your area. For example, drought-resistant plants should be used in dry areas.
Spread mulch around plant beds to trap in moisture and keep out weeds.