My honeyberry are showing green growth after looking dead for a year

Last year I got a Giants heart from Berries unlimited and a blue banana from Stark Bros. I had thought these died as they lost their leaves last summer or spring and showed no growth. Some people on here urged me to refrain from pulling them out as they thought they could push new growth later. Fall came with no new growth but I never got around to pulling them. Finally around May I start to see green coming out of the top of Giants heart where it intersects into more than one part. Blue banana is sending off a lot of suckers. Somehow they lived a season with no leaves and are going on. Quite interesting.