The bulbs can also be planted outdoors: the plant then disappears in winter and returns in spring. Also as a houseplant, the oxalis might go into a resting period, usually in fall or winter. Do the leaves look bad and die? Minimize watering with a little splash now and then. After a few weeks – often in spring – new stems appear and you can start water regularly again. Don’t eat! To save the bulbs for later: keep them cool and dry.