The site below says to plant 3-4 inches apart, and 1-2 inches deep in well drained soil.

I received some in trade in late winter, and potted them up for a houseplant, and they are much close, and not very deep.

They have not thrived, (spindly due to the lack of light). I plan to repot them in a big pot outside, and then repot them again this winter to bring inside...unless I decide to try and store the bulbs for replanting in the spring.

I'm guessing that would be all right.

Sue

Here is a link that might be useful: Shamrock Bulbs

Oxalis is almost indestructable. They get stringy and can look dead and still thrive once planted out in decent soil and get natural sunlight.

Just an 'uninformed' warning. In some zones oxalis can become an invasive nuisance. Others would know where this might be an issue. It's not invasive for us but a good idea to consult local gardeners in your region before letting it go to seed.

We have wild oxalis that seeds all over. I use Preen to try to control it in some places, but in others I actually want to have my perennials seed so don't want to use Preen. I saw oxalis at the garden center and wouldn't touch it based on my issues with the wild stuff.

Thank you for all of the advice. I have them in a planter on my patio, so they will not be an "invasive nuisance". I love the garden web.....

There are both hardy and non-hardy oxalis species. The purple ones that I know of are all cannot tolerate a hard freeze, i.e., if the soil they're in freezes solid, they're toast. Most of the large leafed green ones (each individual leaf out of three or four > 1" across) are also like this.

It is true that they can spread like crazy, both by rhizomes and seed, given the right growing conditions, so anyone south of zone 7 or so should be careful. They can be pretty tolerant of varying soil conditions, and will even grow in bark mulch if it gets enough water.

Indoors and in pots they're great. They can withstand total drying out and dying back (nice if you go away for a few weeks and can't get them watered) and come back once water is supplied again. They can be lifted and stored all winter in a cool spot (like a garage that doesn't freeze) and replanted in the spring.

I plant the rhizomes

I'm in the south.For me they die down in the summer(the ones in the lawn) I have some in flowerbeds as well and in the shade bed& a few flowerpots they bloom more for me when its cooler.mine are pink and then have some pink with a lil purple streaking...i see the wild yellow ones too.