Best time to transplant ornamental grasses

Asked May 22, 2019, 10:05 AM EDT

When is the best time of year to transplant ornamental grasses?

Clackamas County Oregon

1 Response

The general guidelines to transplant ornamental grasses are as follow:
- Cool season grasses: Transplant and/or divide in the spring prior to, or when, new growth begins. Or transplant and/or divide in September which is early enough to allow the clump to re-root and stabilize.
- Warm season grasses: Transplant and/or divide when new growth appears in the spring and before significant stem elongation occurs.

In all cases:
- Thoroughly moisten the rootball and surrounding soil prior to digging, then allow a day or two so that the growing mix isn't soggy.
- Prior to planting in the new site, dig the hole, then fill it with water and allow it to drain completely; repeat the soak at least one more time.
- Don't add anything to the planting hole. Not rocks or gravel; not compost; not fertilizer.
- Don't allow the roots to dry out prior to replanting.
- After planting ensure that the rootball remains moist; water may be needed every several days at first.
- Be ready to rig temporary shade if the temperatures soar.