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Native Range: Eurasia
Invasive Range: ON,BC,QC,NB,NF,NS
Time of Invasion: Prior to 1943
Invasion Pathway: Garden escape
Status: Low
Impacts: Excludes other species and prevents regeneration
Control Measures: Physical removal
(Invasive Species in Canada)
Where it grows: Periwinkle prefers shady areas, but will grow well in full sun where it produces more flowers. Preferring moist, well-drained soil, it is tolerant of a wide variety of soil conditions. (Stewards in the City)
How it spreads: An evergreen groundcover with dark green foliage, periwinkle blooms in April and sometimes again in the fall. It spreads in all directions by sending out long tailing and rooting shoots making new plants. (Stewards in the City)
How to control it: Periwinkle can be removed by using a trowel to loosen the soil around the plant carefully dig up the root system. Be sure to dig up the entire root system and remove all stems from the area to prevent resprouting and seed formation and dispersal. Mowing or cutting is not recommended since it may stimulate dense growth from the remaining roots. Hand removal is quite labour intensive, but can yield good results if the entire root is removed. (Stewards in the City)
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