Periwinkle is a rapidly growing, perennial, scrambling ground cover weed. It forms rhizomes and long trailing stems that root where they touch the ground. This is a very difficult weed to get rid of.
Periwinkle is a perennial ground cover weed that has fleshy green leaves and stems. It produces 5 petaled purple blue flowers all year round. Periwinkle smothers plants and ground in open or shady conditions. Dense mats cover the ground, smothering and crowding out other plants.
For long term control on non-cultivated areas use Weed Weapon Long Term.
Cut down periwinkle and immediately apply Weed Weapon Invade Gel to all cut ends to kill root systems effectively.
Small patches can be dug out but ensure all roots are removed as these will re-sprout. Dispose of plant material at a refuse transfer station or burn. Check for regrowth.
Did you know
Periwinkle rarely produces seeds in New Zealand but is easily spread by vegetative reproduction where small pieces will readily root and grow.
The species of periwinkle common in New Zealand are:
Vinca or European periwinkles
- Greater periwinkle - Vinca major
- Lesser periwinkle - Vinca minor
- Herbaceous periwinkle - Vinca herbacea
Biodiversity and Biosecurity Weeds
In New Zealand many weeds cause environmental damage. They may have started off being planted in gardens as ornamentals, and only became a problem when they ‘escaped’ in to the wild where they are not wanted.
How to Use Weed Weapon Preventer to Stop Weeds Emerging
How to use Weed Weapon Preventer to keep weeds away for months amongst shrubs and trees and in pots.
Deals with Periwinkle
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- Dye and Stick
- Weed Weapon Extra Strength
- Weed Weapon Invade Gel
- Weed Weapon Long Term
- Weed Weapon Rapid Action