Q.wintering hens and chicks
last year my hens and chicks grew very well, this spring when snow melted very few were
left and they have not grown very well.
how do I protect them during winter?
Certified GKH Gardening Expert
They should be completely hardy in your area. It could just be that the soil is too rich, or that there was too much moisture over winter. This will kill them for sure.
These guys are succulents, and hardly ever need water. You may have to, drastically, change the ground where they are to match the needs of this plant in order for them to survive. They thrive on poor soil that is gritty and does not retain moisture. Rocky, or sandy areas are best.
This article will give you more information on these plants: https://www.gardeningknowhow.com/ornamental/cacti-succulents/hens-chicks/growing-hens-and-chicks.htm