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 petalled 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.
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
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