Louise Piché, home gardener in Rock Creek, has great success growing onions. She stores them in a cardboard box in a cool corner of her house and they last all winter. Here are what remains in May – still firm and looking good. Her secret to storage is to let them dry very well on newspaper in the greenhouse before boxing them up for the winter. Download Louise Piché’s Seed Guide. Louise is well-known as a wonderful gardener in Dawson, and a frequent prize winner at the Discovery Days Horticultural Fair in Dawson City, Yukon.