I grew a number of tulips this spring (planted last autumn). I believe I was too late with some of them and/or planted them too shallowly, and as a result many grew poorly and split into a large number of offsets. I've broken down the bulbs, thrown away the rotting mother bulbs and stored the offsets in trays. They seem to be perfectly fine with this with no mould or shrivelling. I'd like to replant them and grow them on this autumn.
I have checked a number of sources including RHS, Dutch Grown and those that specifically mention offsets suggest a planting depth of eight inches. Really? It seems surprising to me that a 1cm/.4" baby bulb could make it this far out of the ground in its first season. I'm well aware that this is recommended for mature tulips. Is it really the case that the best planting depth for very tiny offsets should be the same as this? I would intend to lift and move them again once grown on to a healthy size.