Perennials are one of the best investments you can make in your garden. They return year after year, creating beauty and structure while becoming more established over time.
But sometimes plants become a little too successful. When perennials grow larger than their space, become crowded, or produce fewer flowers, dividing them can help restore their health while giving you new plants to enjoy.
Late summer and early fall are often excellent times for dividing many perennials in the Pacific Northwest.
Signs It’s Time to Divide
Your plants may need dividing if:
- The center of the plant looks bare
- Flowers are smaller than usual
- Growth is crowded
- The plant is spreading beyond its space
- You want to create more plants for your garden
Perennials That Benefit From Division
Some popular plants to divide include:
- Hostas
- Daylilies
- Iris
- Ornamental grasses
- Peonies
- Sedums
- Coneflowers
Always research your specific plant before dividing, as timing varies.
How to Divide Perennials
1. Water Before Starting
A well-hydrated plant is easier to work with.
2. Dig Carefully
Lift the plant while protecting as many roots as possible.
3. Separate Sections
Divide the plant into healthy sections with roots and foliage attached.
4. Replant Quickly
Place divisions into prepared soil and water thoroughly.
Give New Divisions Extra Care
Newly divided plants need time to establish.
Help them by:
- Keeping soil consistently moist
- Adding mulch
- Avoiding stress during hot weather
- Monitoring growth
Refresh Your Garden
Dividing perennials is a great way to improve your landscape while creating more plants to enjoy.
It’s a simple gardening task that rewards you with healthier plants and a fuller garden.
Leave a comment