Removing periwinkle from beds takes steady effort: loosen vines, lift roots, smother regrowth with mulch, and repeat until no new shoots appear.
Periwinkle looks tidy on a slope or under a tree, then one day you realize it has crept through shrubs, swallowed bulbs, and edged into the lawn. Once the glossy vines knit together, they push out almost every other plant in reach.
The good news is that you can push back. With a clear plan, the right tools, and steady follow up, even a dense mat of periwinkle can give way to healthier groundcovers, shrubs, and flowers.
Why Periwinkle Takes Over So Quickly
Most garden periwinkle is Vinca minor or Vinca major. Both grow as trailing evergreen vines that root wherever stems touch moist soil. Each new rooted node creates another anchor point, so a few plants spread into a solid carpet within a few seasons.
Research from the Cooperative Extension network notes that common periwinkle forms thick mats that block light and crowd out wildflowers and seedlings across large areas of forest floor and garden edges invasive species profile. Stems can reach around two metres long, and leaves stay green through much of the year, which keeps shade constant.
Before you start pulling, accept one fact: this plant fights to stay. One hard weekend rarely clears a long standing patch. Success comes from stacking methods and repeating them through at least one or two growing seasons.
Periwinkle Removal In Garden Beds: Tools And Timing
A plan for periwinkle removal in garden beds starts with the right season, simple tools, and a section by section approach. Trying to rip out every vine in one day leads to broken roots and gardener burnout.
Best Season To Start Clearing Periwinkle
Cool, moist weather makes removal easier. Early spring or autumn works well in many regions, because soil is soft and you can see evergreen vines before summer growth hides them. In hot spells, pulling is harder on both you and the soil.
If winters stay mild where you garden, you can work in any frost free window. In colder climates, wait until the ground thaws and drains, then start.
Tools That Make Periwinkle Removal Easier
You do not need fancy gear. Gloves, a hand fork or narrow trowel, a digging fork, pruning shears, cardboard, mulch, and sturdy bags will handle most beds. Keep these close and work in small zones so each finished patch gives a clear win and helps you track regrowth.
Why Smothering Works So Well On Periwinkle
Periwinkle stores energy in its roots and stems. When you cut the top growth, it often sends up new shoots from hidden nodes. Smothering denies those shoots light and new leaves, so the plant slowly uses up its reserves. Many best practice guides now pair hand removal with thick cardboard and mulch as a standard combination periwinkle management guide.
Smothering also protects soil structure. Instead of bare patches that bake in sun and invite other weeds, you get a covered surface that stays cooler and holds moisture while you plan new plantings.
How To Get Rid Of Periwinkle In The Garden Step By Step
This method suits most home gardens and can be scaled up or down. Adjust the exact tools and timing to match your climate and how dense the vines are, but try to keep the overall sequence.
Step 1: Cut The Top Growth Down
Start by cutting vines so you can see what you are working with. In open areas use shears or a string trimmer to bring stems down to a few centimetres. Around valued plants, clip by hand and ease vines away from trunks and branches.
Step 2: Loosen And Lift The Root Mat
Slide a hand fork or narrow trowel under the cut vines and gently pry up sections of mat, aiming to lift long sheets. In deeper patches, use a digging fork to loosen roots, then peel the mat away and shake soil back into the bed. Remove as many stem fragments as you can, because even short pieces can re root once they touch moist soil invasive vine and groundcover control.
Step 3: Hand Dig Remaining Crowns And Thick Roots
After you lift the main mat, stubborn root crowns and woody stems remain. Use your trowel or mattock to pop these out, working slowly around the base of shrubs and trees so you do not slice their roots.
Step 4: Smother The Area With Cardboard And Mulch
Once the obvious roots are out, lay plain cardboard over the cleared soil, overlapping sheets so no gaps remain. Cut neat holes for plants you plan to keep and pull their stems through, then cover the cardboard with eight to ten centimetres of wood chips or shredded bark. This hides the paper, weighs it down, and forces any remaining shoots to travel farther before they see light invasive plant factsheet.
Step 5: Use Herbicide Only Where It Makes Sense
On very large sites, or where periwinkle threads through slopes that are hard to dig, some gardeners add selective herbicide treatment. This choice depends on local rules, site layout, and your comfort level. If you go this route, choose a product labelled for woody groundcovers, follow every direction on the label, and spot treat rather than blanket spraying.
Safety Check Before Any Spraying
Read the label from start to finish, wear the protective gear it lists, and only spray on calm days so drift does not hit other plants or water. Keep children and pets out of treated areas until the label says it is safe to return.
Many regional guides pair cut and paint or cut and spray methods with ongoing mowing and smothering, instead of relying on chemicals alone invasive control methods. Local regulations vary, so always check rules for your area before purchase or use.
Periwinkle Control Methods At A Glance
The table below sums up common techniques you can mix and match for your garden.
| Method | Best Use | Notes |
|---|---|---|
| Hand Pulling | Small patches, around prized plants | Work after rain when soil is soft for easier root removal. |
| Digging With Fork Or Mattock | Thick, older mats | Loosens deep crowns so large sheets peel up in one pass. |
| Cutting Or Mowing | Large open zones | Reduces foliage and exposes stems for later steps. |
| Cardboard Plus Mulch | Any cleared bed | Blocks light and slows regrowth while you plan replanting. |
| Solarization With Clear Plastic | Sunny, flat areas | Heats soil and vines; needs one warm season under plastic. |
| Targeted Herbicide | Steep slopes or very large sites | Use as a spot treatment only, following all label directions. |
| Combination Approach | Most home gardens | Stack cutting, digging, smothering, and replanting for best results. |
Step 6: Patrol For Regrowth Over One To Two Years
Even a careful first pass leaves missed roots. Mark beds on a simple sketch and check them every few weeks through the growing season. Any new vine that pokes through mulch should be pulled or spot treated right away, and each quick pass drains more stored energy until regrowth slows and then stops.
Planting New Groundcovers After Periwinkle Removal
Once periwinkle stops sending new shoots, you can begin swapping in plants that behave better. Good replacements knit together enough to shade soil without racing into nearby woods or hedges.
Prepare The Soil For New Plants
After one or two seasons under cardboard and mulch, soils in former periwinkle beds often feel looser near the surface but compacted below. When you lift the remaining cardboard, work compost into the top twenty to twenty five centimetres with a fork, then check drainage with a small test hole. Slow draining clay may suit some woodland groundcovers, while sandy slopes need plants that cope with drier conditions.
Choose Groundcovers That Stay In Bounds
Native or region friendly groundcovers give you foliage and weed suppression without the spreading problem. Many invasive plant programs suggest swapping periwinkle for low shrubs and wildflowers that match your local climate native alternative suggestions. Work with small groupings of one species at a time and space plants so their foliage will touch within a few seasons, which helps shade out new weeds.
Sample Groundcovers To Replace Periwinkle
The choices below are a starting point; check hardiness and moisture needs against your region.
| Plant | Typical Height And Spread | Site Preference |
|---|---|---|
| Bearberry (Arctostaphylos uva-ursi) | 15–20 cm tall, wide mat | Sunny slopes with lean, well drained soil |
| Foamflower (Tiarella cordifolia) | 20–30 cm tall, slow spread | Part shade, moist woodland beds |
| Partridge Berry (Mitchella repens) | 5–10 cm tall, creeping stems | Shade, humus rich soil |
| Woodland Phlox (Phlox divaricata) | 30–40 cm tall clumps | Light shade, evenly moist soil |
| Moss Phlox (Phlox subulata) | 10–15 cm tall mat | Full sun, rock gardens and dry banks |
| Wild Ginger (Asarum canadense) | 10–15 cm tall clumps | Shade, rich, moist beds |
| Lowbush Blueberry (Vaccinium angustifolium) | 20–40 cm tall | Acid soil, open woodland or sunny edges |
Disposal And Long Term Monitoring
Every stem and root you pull needs careful handling. Tossed on the compost heap, periwinkle often keeps growing. Even small stem pieces can root once they touch damp soil again.
Bag, Dry, Or Burn Plant Material
Bag vines and roots in heavy plastic and send them to municipal green waste if that service handles invasive plants. Where open burning is allowed and safe, dry pulled vines on a tarp, then burn them once they are crisp, or pile dried stems on a solid surface so they decay without soil contact. Never dump periwinkle clippings in nearby woods, vacant lots, or at the back of the property, since many new infestations start that way disposal advice.
Watch Edges And Paths
Vines often sneak back from neighbouring yards, path edges, or under fences. Walk the boundary of your cleared beds at least once a month during the growing season, and lift any new strand while it is still short.
Common Mistakes When Removing Periwinkle
A few patterns tend to bring periwinkle right back after a season or two. Avoiding these habits saves a lot of digging later.
Stopping After A Single Season
Periwinkle rarely collapses after one round of cutting and pulling. Roots left in the soil respond strongly the next spring, so a two to three year plan from the start keeps expectations realistic and turns each follow up pass into progress instead of frustration.
Leaving Bare Soil After Removal
Empty soil between shrubs may look tidy, yet it invites both periwinkle and other weeds to sprout. Cardboard and mulch give a cleaner look right away and create a buffer while you choose new plants, and a mix of shrubs and groundcovers leaves less open ground for vines to exploit.
Letting Periwinkle Spread Beyond The Garden
Periwinkle that escapes into nearby woods or ditches takes far more time and money to manage than a small garden patch. Many regions now warn gardeners about this plant and list better groundcovers in public guides invasive species guidance. Keeping your beds clear protects nearby natural areas as well as your own paths and borders.
Step by step removal, careful disposal, and patient replanting turn a periwinkle tangle back into a garden you can shape, with each cleared square metre opening space for plants you actually want to grow.
References & Sources
- Invasive Species, Cooperative Extension.“Vinca minor, Common Periwinkle.”Background on periwinkle growth habit, spread, and invasive status across North America.
- Metro Vancouver.“Best Management Practices for Common Periwinkle in the Metro Vancouver Region.”Guidance on integrated control methods, disposal, and follow up for periwinkle.
- University Of Maryland Extension.“Invasive Vine And Groundcover Control.”Overview of pulling, digging, cutting, smothering, and herbicide techniques for invasive groundcovers.
- Master Gardeners Of Northern Virginia.“Periwinkle (Vinca minor) Invasive Plant Factsheet.”Notes on periwinkle behaviour in gardens and suggested native groundcover alternatives.
