Blue Knight has a nice and colorful appearance. You can see royal purple along with tones of bright green and deep blue in this marijuana strain. It leans more towards the Indica side and is created by marrying Kryptonite with Blueberry. It is quite a rare strain with a good potency level. Blue Knight has a total 26.44 percent THC level, 1.13 percent CBN level, and 3.93 percent CBD concentration. Its aroma is lovely with a strong hint of blueberries and vanilla. You can also smell some earthy undertones in its aroma.