Oxalis need sun although Oxalis can also grow in partial shade but they prefer bright and indirect sunlight and in hot climates they may require protection from the hot afternoon sun.
If kept outside the oxalis cannot handle direct sunlight and must be kept in the shade when outdoors.
You should also water your Oxalis when the soil is 50 to 75 percent dry and avoid getting the soil soggy as oxalis cannot tolerate soggy soil.
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.