Perhaps you’ve been thinking about digging and dividing some of your perennial flowers, or found that you planted some kind of shrub in a spot that is too shady, and now after a year or two want to move it to a little sunnier spot. The time of transplanting is upon us.
Some sunny areas have seen the ground thaw completely, or will be thawed within a few days. Shady areas may continue thawing out for another week or slightly more.
Start by digging in the areas where you want to plant the perennials, shrubs or trees that you are going to divide or move whole. If the soil is still too wet or hard, wait a few more days. Once you can dig comfortably in the receiving area, without compacting overly wet soil, or chopping frost, go ahead and dig up the plants you want to move.
Harvest as much of the roots as possible by using a clean sharp spade (flat nosed if best). On perennials that you intend to divide it is not necessary or desirable to leave a lot of soil on the roots. Shake off the soil that comes off easily and then use a sharp stiff knife, spade or hatchet to split the root mass into pieces. Replant the pieces so that what was at the soil surface previously ends up at surface level again. They will grow better than if you bury the crown that naturally exists at the surface.
When moving shrubs and trees you may want to try to leave soil attached to the roots when you move the plant. How much soil you leave on the roots is a matter of practicality. If the ball of roots and soil you have dug is too heavy for you to safely move, worry off some of the soil by rolling, shaking or proding. When it is a comfortable size/weight go ahead and move it to the new location.
When a shrub or tree has a trunk diameter of one inch, try to make the first shovel cut about 7″-8″ out from the trunk when you are digging it up. This will give you a root ball of 14″-16″ across. For trunk diameters of 1 1/2″, make a root ball that is about 18″ to 22″ wide. For 2 inch trunks, a 24″ diameter is best. This can be a battle, since the bigger the root ball, the heavier and the more work it is in digging and moving. For this reason, it is best to watch trees and shrubs closely during their first 2-3 years in your landscape, so that if you decide a move is necessary, you can do it before the plant gets too large.
If the weight of the root ball is just too much for you, shake and worry off all the soil and move the tree or shrub bare root. You should only do this PRIOR to the time the plant leafs out, or the transplant shock will be too great. For this reason, April 10-20th is an ideal time to re-locate trees and shrubs.
Good luck and happy transplanting!!
I have also shared this blog with the Northfield News.