Houseplants with purple leaves bring a unique beauty to an ... and average to above-average relative humidity.' 'Oxalis are ...

Rather than pruning your plant to control its growth and shape, I simply prune an Oxalis triangularis to remove spent flowers and withered leaves to protect the plant ... almost-black purple, red, ...

Also known as the Purple Shamrock, this dramatic plant has leaves that fold down like a ... it just might be your Oxalis Triangularis, shifting ever so slightly in the twilight.

Also highlighted is the Oxalis triangularis or Purple Shamrock, a 'dramatic plant' whose leaves fold down like a bat's wings at dusk. 'By day, the deep purple leaves fan out, but as the sun sets ...