There I was at a nursery in Connecticut last Saturday. They had four open boxes with Crocus ochroleucus, C. sativus, C. zonatus (isn't the clone that is generally available one that multiplies freely and does not flower?) AND Sternbergia. All items were 10 for $7.00. Of course I succumbed and picked out 10 nice fat brown sternbergia bulbs. Don't you adore it when the bulbs are loose in a bin and you can fondle them and pick out the prettiest? Much better than pre-packed in bags, and getting less and less common. So here's my question - Elizabeth Lawrence in her book "The Little Bulbs" says it likes limestone. I have a 50 pound bag of crushed oyster shell I got from the local farm supply place here in New Jersey. Could/ should I use crushed oyster shell as the drainage material in a potting mix? They'll be potted and on the floor in my cool (50° Fahrenheit) greenhouse over the winter. I'd rather keep them cooler, but the only other choice is to keep them in the attached, unheated garage (38° F. at the coldest) where sufficient sunlight is problematical. Thanks for your sagacious advice. Judy in New Jersey, where it is raining. Again.