Oxalis regnellii rubra is a dependable source of red
foliage. I grow them primarily in containers because Oxalis bulbs
tend to be pretty aggressive. I have not had any trouble with this
species, but others have given the neighborhood a bad reputation. One of the nice aspects of this as a
container plant is that if they do get too dry they are bulbs and they do
come back. I have had some issue with rust. To counteract this
I strip the diseased leaves and try to water without splashing the
leaves. The markings on the tops of the leaves are great. The
contrast between the tops and bottoms of the leaves interesting and the
boldly contrasting flowers fantastic as an attention getter.
High resolution images
of Oxalis regnellii rubra are available.