Jumbo Asparagus are specific varieties of asparagus that are cultivated for their ability to maintain a succulent and firm texture when harvested at maximum maturity. They display many of the same flavor characteristics of pencil and medium asparagus, however they may be quite richer in grassiness. Ideal spears are firm and have the quintessential pistachio green knobby scales and Christmas tree-like tips intact. When cooked they have a meaty density and an equally lean-rich ratio of grass and butter.