More Information About Oxalis
While oxalis is sometimes known for the weedy members of the family, there are a great many non-weedy species that make fabulous garden plants. The genus Oxalis is huge with over 800 members and only a few are badly behaved.
Caring and growing for Oxalis
Oxalis are deciduous, easy to grow and easy to share bulbous plants that make great accents for rock garden-like settings. The popular garden oxalis have wonderful leaf colors; silver, green and purple plus attractive small white, pink, or yellow, butterfly-attracting flowers. Oxalis leaves fold over at night or during droughts to conserve moisture, then pop back open during the day (this is called nyctinonasty). Charming!
Although commonly sold in containers as shamrocks, they are not true shamrocks, which belong to the genus Trifolium. The genus Oxalis is not even a close relative and the similarities in leaf form are coincidental.