Caper spurge
Information on habit, biology, persistence & spread for Caper spurge.
Caper spurge is an herbaceous biennial, that may occur in fields and gardens
Other names
Latin names
Euphorbia lathyrus L.
Weed Type
Biennial Weeds
Where would I find caper spurge?
Caper spurge is an herbaceous biennial, that may occur in fields and gardens. It is found as a casual or naturalised alien in waste places and is possibly native in shady places. The plant has been found in cottage gardens and coppiced woods.
The seeds are poisonous. The plant exudes an irritating milky sap when damaged.
Biology
Caper spurge flowers from June to July.
The seeds germinate in May.
Does caper spurge spread easily?
Caper spurge seeds are thought to be capable of remaining viable for long periods in soil.
The ripe seeds are dispersed explosively. The seeds bear an extra structure that is attractive to ants and this may help with seed dispersal.
How to manage caper spurge organically
Normal soil cultivations should give adequate control. It is important to prevent seeding.