Marking Perennials in Fall: So You Know Where Plants Are in Spring
Marking perennials in fall means setting a label or stake beside each plant before its top dies back. In spring you can find dormant crowns plus dig without hitting them.
The short answer
Marking perennials matters because many go dormant plus vanish over winter. UMN Extension notes daylilies were traditionally dormant through winter. UMN advises dividing fall bloomers in spring, when new growth is emerging. Iowa State notes plants set out in late summer may heave in winter. Mark each plant, sketch the bed plus check markers in spring.
Which perennials should you mark?
| Plant group | Why mark it | Source |
|---|---|---|
| Late summer plantings | Prone to heaving | Iowa State |
| Fall bloomers to divide | Divided in spring | UMN |
| Dormant daylilies | Tops die back | UMN |
Source: UMN plus Iowa State.
Why does winter heaving matter?
Iowa State notes freezing plus thawing can lift plants out of the soil, exposing crowns. Garden mum, Shasta daisy plus coral bells often heave.
How to: step by step
- Mark plants while the foliage still shows.
- Drive a sturdy stake beside each crown.
- Write each plant name on a label.
- Sketch the bed showing each plant spot.
- Mulch new plantings with straw or pine needles.
- Check markers plus crowns in early spring.
Troubleshooting
Lost labels: light tags blow away. Use sturdy stakes plus a sketch.
Crowns pushed up: heaving. Iowa State advises mulch in late fall.
Dug into a crown: no marker. Wait for growth before digging.
Read fertilizer plus compost for growing outdoors, fall garden cleanup after cannabis harvest plus planning an outdoor cannabis garden layout. Kind Seed Co also stocks cannabis seeds.
Sources
- Dividing perennials, University of Minnesota Extension
- Which perennials are most likely to be heaved out of the ground in winter?, Iowa State University Extension and Outreach
- Daylilies, University of Minnesota Extension
- Hemerocallis (daylily), NC State Extension Gardener Plant Toolbox
FAQ
When should I mark perennials?
Mark them in fall while the foliage is still visible, before the tops die back for winter.
Which perennials heave in winter?
Iowa State lists garden mum, Shasta daisy, painted daisy plus coral bells, along with plants set out in late summer.
How do I limit heaving?
Iowa State advises mulching late summer plantings with several inches of straw or pine needles in late fall.
Should I divide perennials in fall?
UMN advises dividing spring plus summer bloomers in fall, four to six weeks before the ground freezes.
Do daylilies need marking?
Many do. UMN notes daylilies were traditionally dormant through winter, though some cultivars stay green.
