Each bulb will form new bulbs - that's what I meant by off shoots.
Different soil conditions are usually the cause of aberrant (for no reason) behavor. It may be right next to a normal looking plant but it may be growing up through a piece of...? (in my yard, it would be hardpan - making my soil either basic or acidic, depending upon the soil. Need to consult with Geochemist Daughter on this).
On the coast in Northern California, there is a miniature forest. When these little trees are transplanted to an area with better soil, they grow normally.
http://www.sonomacounty.com/ar...
Daisy
