Grow oxalis plant. Fill your containers with good quality, well-drained soil. Almost any commercially available potting medium will work fine. Make sure there are adequate drainage holes; bulbs must never sit in soggy soil or standing water.
Site your oxalis where they will get full day sun. They will also grow in light shade, but will produce more flowers in stronger light. Consider potting up a few bulbs for indoor enjoyment as many types of oxalis are good choices for windowsills.
Dig little holes and plant the bulbs 1”-1 1/2” deep and 3”-4” apart. Just poke them down in the soil, don’t worry about which side is up. They’ll grow from any position.
After planting, water well, gently soaking the soil and settling it around the bulbs. Foliage will begin to appear in just a few weeks and flowers in 6-8 weeks.
After blooming has finished for the season leave the foliage in place; don’t cut it off. The leaves will gather sunlight, create food through photosynthesis and strengthen the bulb for the future. Water as needed during active growth periods; about 1″ of total moisture per week is a good general estimate.
Late in the summer the leaves will yellow and die back as the plant slips into dormancy. Foliage many be removed at this point. Your oxalis will rest for a month or two before beginning the next growing cycle.