The prefix ""express"" in the name is added for a good reason. These varieties are remarkable because they give a good harvest feminized plant two weeks earlier than its counterparts. Express strains aren't autoflowering strains. Absolutely unique seeds, novelty on the world market, and in order to avoid counterfeits Kalashnikov don't fully specify the genetics in the description of those varieties. This is basically AK Kush fem, only a much more rapidly growing and flowering version of it. The new strain is genetically is composed by breeding the common AK Kush with Kalashnikov's secret Express hybrid. The result is a bit sweeter and aromatic than its feminized variation and it's very much more Indica-like. It can be harvested two weeks prior to AK Kush common harvesting period, yet the amounts of production stay massive.