Yes, you can divide valerian plants, and it's a recommended practice for maintaining their health and propagation.
Dividing valerian involves separating the root system into multiple sections, each capable of growing into a new, independent plant. This method is particularly useful for rejuvenating older plants, preventing overcrowding, and creating more valerian plants for your garden.
When to Divide Valerian
The best times to divide valerian are:
- Spring: After the last frost has passed, allowing the new divisions ample time to establish before the heat of summer.
- Fall: Several weeks before the first expected frost, giving the divisions time to root and adjust before winter dormancy.
How to Divide Valerian
- Dig up the plant: Carefully excavate the entire valerian plant, being mindful not to damage the roots excessively.
- Separate the roots: Gently tease apart the root ball with your hands, or use a sharp knife or spade to cut through the dense root mass. Ensure each division has a healthy portion of roots and foliage.
- Replant the divisions: Plant each division in a prepared garden bed or container, spacing them appropriately. Water thoroughly after planting.
Benefits of Dividing Valerian
- Propagation: Create new valerian plants from a single mature plant.
- Rejuvenation: Prevent the central section of the plant from dying off.
- Space Management: Avoid overcrowding of the root system.
Dividing valerian every few years keeps the plants vigorous and productive.
