I haven't seen styrofoam peanuts in a long time, but we buy computers and other such electronics fairly often, and they come nested in carved holes in box-sized pieces of styrofoam. I break off chunks of these to put in the bottom half or two-thirds of large pots. They probably give the effect of big rocks, maybe tumbled off a retreating glacier. I've had a collection of auriculas growing beside my front door in just such a pot for almost ten years. I haven't tried bulbs, but I imagine they could fit themselves in the crevices. -- Diane Whitehead Victoria, British Columbia, Canada maritime zone 8 cool mediterranean climate (dry summer, rainy winter - 68 cm annually) sandy soil