Sweet pea shrub
|Botanical Name||Polygala myrtifolia|
IdentificationAttractive much-branched shrub up to 2 m high. Leaves alternate, oval to 30 mm long. Flowers clustered in simple racemes at the ends of the branches. Flower pea-like and purple or veined purple, Jan-Dec.
HabitatsCoastal fringes, occasionally shrubland. West coast cliffs near Karekare and Piha. Cliffs of Kawau Island.
Impact to Biota and EcosystemsCurrently vigorously spreading along coastal cliff areas on west coast in Auckland. Displaces native coastal shrubs. Cliff communities are particularly at risk.
Dispersal Routes, Vectors, Infestation SourcesGarden escape. Spreads by seed.
Pull out by hand if plant numbers are few. Large plants can be cleared with a brushcutter.
(i) Spray with Tordon Gold or Tordon Brushkiller.
(ii) Glyphosate at 100 ml in 10 litres of water plus 20 ml of Penetrant.
Hand pull if possible.