If you keep the roots from freezing, you can easily proagate your oxalis that way. That is a very unusual cultivar! More common ones are widely available now in garden centers, sold as shamrocks. Here is a link that might be useful: indoor-outdoor oxalis

Hi I have oxalis with purple leaves and pink flowers that grows fairly large and then I have oxalis with green leaves that has pink flowers and grows small. there are many types I guess. I have seen large plants with green leaves and white flowers . Can you be more specific . What i have I grow in pots so I couldn't fill a large box but the purple leaved kind spreads very fast and every bit of rizome will make a new plant Here is a link that might be useful: ricjo22's exchange list

Well, we've had a week of 60-70 degree weather and while the crocuses, daffs, daylilies, sedum, chives and parsley are up and looking good, there's no sign of life in the large bowl of purple shamrocks I accidentially left outside last fall. Not that I'd expect that in Denver. Duh! I did buy a variety of oxalis from Easy to Grow Bulbs last fall that's supposed to be winter hardy to zone 5 and - yippee! - it's sprouting now. Silvery foliage and little pink flowers (later). This cultivar is only sold in the fall, but they have other types now. Below is the link for the silver Oxalis Adenophylla, which can't be bought in the spring, but you can still look at the listing now. Pretty exciting to have any oxalis come back after a Denver winter! Here is a link that might be useful: Silver Shamrock (oxalis adenophylla)

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