The official shamrock of Ireland is Trifolium dubium (try-FOL-lee-um DOO-bee-um), a clover with yellow flowers and lobed leaves. The word Shamrock comes from the old Irish word "seamrog"
which means "summer plant."
|Oxalis triangularis burgundy|
They prefer bright light but not direct sun and a consistently moist soil, not soggy. Don’t overwater. If the foliage turns yellow, this could be a sign of overwatering.
Another variety, Oxalis regnellii (ox-AL-liss reg-NEE-lee-eye), is also sold as a shamrock. This plant is similar to the O. acetosella but has white star-like flowers. Care for this plant is the same.
Learn more about shamrocks
USDA Plant Database- Oxalis
USDA Plant Database - Trifolium dubium
University of Arkansas-Shamrocks
University of Arkansas Plant of the Week- Shamrock
University of Vermont Extension – Shamrocks for St. Patrick’s Day
Philadelphia County Master Gardeners Shamrocks and Fake Four-Leaf Clovers