They weren't happy at their original planting depth (or soil has beenadded on top and are now self-adjusting the bulb depth by developing a new one along the stem. Clever isn't it! That's how snowdrop seeds which germinate on the soil surface end-up as bulbs about 4 inches down (their ideal planting depth.)
A trowel in the hand is worth a thousand lost under a bush.
Right that explains alot. They have been in a raised bed for about three years, as things are planted near them have just added soil/compost , so yes the soil depth has increased. They were becoming over crowded so moved some to my new bed and left a third there. I started with 100, but each patch must have that many now.😁
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