Boxwood shrubs can be divided, but it is important to approach this task carefully to ensure the success of the transplants. Dividing boxwood plants can be a useful technique for propagating new plants or for rejuvenating older, overgrown shrubs.
When dividing boxwood, it is best to do so in early spring just before new growth begins or in early fall before the ground freezes. These times of the year provide optimal conditions for the plants to establish themselves in their new locations.
To divide a boxwood shrub, start by digging a wide circle around the plant, taking care not to damage the roots. This will help ensure that you capture as much of the root system as possible when lifting the shrub out of the ground. Use a sharp spade or shovel to carefully lift the shrub, trying to keep as much of the soil intact as you can.
Once the shrub is out of the ground, examine the root system and look for natural divisions or areas where the plant can be separated. Boxwood plants often have multiple stems emerging from the base, which can be used as a guide for where to make divisions. Gently separate these sections, taking care to minimize any damage to the roots.
If the plant has a particularly dense root system, you may need to use a sharp knife or pruning shears to help with the separation. Make clean cuts to avoid tearing or crushing the roots.
After dividing the shrub, you can replant the sections in their new locations. Prepare the soil by digging a hole slightly larger than the root ball of each section. Backfill the hole with a mixture of compost and soil to provide a nutrient-rich environment for the transplants. Firmly tamp down the soil around the roots to ensure good contact and eliminate any air pockets.
Water the transplants thoroughly after planting and continue to provide regular watering until they become established. Mulching around the base of the plants can help conserve moisture and suppress weeds.
It is important to note that not all boxwood shrubs will divide successfully. Some plants may be more difficult to divide due to their root structure or growth habit. If you encounter resistance or significant root damage during the division process, it may be best to leave the shrub as is and consider other propagation methods such as rooting cuttings.
Dividing boxwood shrubs can be a rewarding way to propagate new plants or rejuvenate older ones. By carefully lifting the shrub, dividing the sections, and replanting them in prepared soil, you can increase the number of boxwood plants in your garden or refresh existing ones. Remember to choose the appropriate time of year for division and handle the roots with care to ensure the success of the transplants.
