NP Why fall is the best time to plant

FALL IS HANDS DOWN THE BEST TIME TO PLANT PERENNIALS, SHRUBS AND TREES

The top reason planting in fall is best: plants focus on establishing new root through all through fall. In the spring it's this established root system supports new robust growth. 

Landscapes change over time. In the fall you can see where holes in your landscape are or you know you need to move things around. In the spring you cannot see these holes until the plants have come up.

AND MOST IMPORTANT...planting in fall means new plants get ample water without you having to remember to water them. Plant them and you are done!