John Lonsdale wrote: If you plant a mature bulb at the wrong depth then it is pretty well stuck - no > amount of grunting and groaning is going to get it down to its desired > level. This is not universally true: snowdrops sometimes produce a 'dropper' and form their new bulb at a lower level than the old one, and tulips often do so. Mature Crocus can also form contractile roots that pull the corm deeper into the (loose) soil. But I agree that most mature bulbs can only stay where they are put. John Grimshaw Dr John M. Grimshaw Garden Manager, Colesbourne Gardens Sycamore Cottage Colesbourne Nr Cheltenham Gloucestershire GL53 9NP Website: http://www.colesbournegardens.org.uk/ >