The propagation of snowdrops is a relatively simple affair and best done when the plant is in full growth. By using the technique of propagation by division you will easily increase stocks of this stunning seasonal plant, it also has the advantage of taking very little time.
Similarly, you can propagate snowdrops by removing offset bulbs either when there are still showing green growth or immediately after the leaves have died back. For both techniques, lift the parent plant when the soil is still moist using either a strong hand trowel or border fork. Carefully, so as to avoid root damage, tease the clump apart removing bulbs either as individuals or as smaller clumps. Using a trowel, plant your new material into a good fertile soil in either full sun or partial shade. The site should be well drained, but not so much that it dries out in summer.
Make sure that the bulbs are placed at the same depth as before so that the soil line remains unchanged. This will be indicated on the bulb as a line where the stem colour changes from green to white. Snowdrops do best in a moisture retentive, humus rich soil, similar to that found in our woodlands so it’s a good idea to add a good quantity of well decomposed leaf mould to the soil first. To finish off, give you new plants a good watering in to help the roots bind with the surrounding soil. That way they will establish far quicker than just being left.