Allen Wrench is A cross between Trainwreck and NYC Diesel resulted in this super potent Sativa. Where the name Allen Wrench came from is a mystery but luckily, the genetics are well documented. Allen Wrench buds are dark green with short orange pistils, they are fairly dense. The smell is a very potent sour aroma that can and will fill the room instantly upon opening a jar. Allen Wrench requires a high level of skill to grow properly/efficiently. A few of the most common issues growers run into with this strain are: tendency to develop bud rot late in flower, nutrient burn, and the plants natural structure will not support buds weight amassed during flower. If you can combat all of those issues, and possibly a few others then the reward will be great. When grown properly Allen Wrench is known to yield heavy and potent buds. Flower cycles can easily take over ten weeks to complete.