Q.bulb blindness in galanthus
Several of my varieties have not produced any flowers this year. They have flowered successfully in previous years. Please, can you help?
Galanthus or what we commonly call snow drops do not like bulbs to be congested tightly. After your snow drops have bloomed I would lift the plant clump and spilt in half. Leave half in it's original growing spot and split the remaining half in 2, and plant 2 new clumps of bulbs.
Make sure they have good loamy soil to grow in. Avoid planting in direct sunlight.
Here is an article that may have more information for you.