Would a sword do? Amazing that so many plants kick-start in the coldest weather. I like what you said about your garden having plants that do well year-round, not just at peak times...in that way, you've got more of an ongoing, survivalist landscape.
Line from a song.."wear a fast gun and live to die" ..no swords allowed..they be like snail mail!
Mmmm what a strange concept in 'survivalist'everything is alive including the dead stuff BUT one must choose the right plants to play the roles..some plant types age and die gracefully and some (like us) do not!