Purple oxalis are not invasive.
The purple oxalis is a well behaved and non invasive plant which is a good addition to many gardens.
Purple oxalis don't spread aggressively and don't outcompete any native plants.
The purple oxalis also coexists with local plants as well as animals without causing any ecological harm.
The purple oxalis is also a manageable plant and can be a valued addition to gardens.
Some people find purple oxalis invasive and others love them.
If you want to control the purple oxalis you can hand weed or hose regularly to prevent seeding and dig up the roots with a weeding knife.
You can also put weeded out plants in the trash or garden waste bin and not in the compost heap.
Purple oxalis are also known as false shamrock or purple shamrock and is a perennial plant which grows dark purple leaves which are almost black.