Blockhead is an indica dominant hybrid (65% indica/35% sativa) strain formerly known as Buruandi from the infamous Genehtik Seeds farms. The genetics of Blockhead are shrouded in secrecy by its breeders, although it is well-known that it is a cross between Sweet Tooth X another mystery strain. Blockhead gets its name from its intensely stupefying mind and body effects as well as its 17-23% average THC level.