Bulbs and Tubers. The Grey County Master Gardeners will be demonstrating the difference between bulbs and tubers. How and when to plant? How to lift and store tubers for winter? Bring your bulb and tuber questions! The Gardener in Residence program is presented by the Grey County Master Gardeners. Attend a monthly gardening demo followed by a 1-hour drop-in advice clinic for all your plant and garden queries.