Legend has it that St. Patrick used the 3 leaved shamrock as a tool to explain the Trinity (3 beings - 1 God: 3 sections - 1 leaf) to the Irish people. You will see this same "pattern" reflected in a celtic trinity knot.
But no matter if you are Irish or not, oxalis make wonderful garden plants. Their tidy clumps of green foliage are mostly evergreen - fading only in extreme summer heat or those really frosty winter months. (They are considered zone 6-10 plants.) My pink regnellii at home blooms several times a year - usually in mid-spring, early - mid summer, and sometimes in early fall. The changing seasons seem to stimulate it's bloom cycle.
For indoor use, oxalis make a cheerful addition to your springtime decorating. They are sensitive to light (their leaves and blooms will close up in low light) and they do not like to be overwatered. (They grow from a corm - so like most bulbs they do not have an extensive root system.)
So if you are looking for a bit o' something Irish for your spring give Oxalis a try.
