Oxalis
Also called wood sorrel
(Oxalis sp.)

Soil: Average
Light: Full sun to light shade
Planting Depth: 3 inches
Planting Distance: 6 inches

With clover-like leaves, blooms are small and yellow, white, pink, or purple, dpending on time of year.  These lovely rascals are so vigorous they can invade other plants if not contained or grown in baskets.  Or plant them in large open areas.

Comments
Oxalis is a large and varied family.  Members grow best--almost year-round--in the South and are often found as a greenhouse plant in the North.  Plant in the fall.