Oral CBD and Vaping are not for you? Do you love to smoke it up? well then CBD seeds will be a great choice for you. Smoking CBD strains is one of the fastest methods for getting CBD inside of your system, great immediate effects that are much stronger than CBD oral oil and CBD e-liquid. Be aware that while strains with over 18% of THC are considered strong, CBD levels of 4%+ are considered pretty high. Let’s get right to it, here are top 5 highest CBD seed strains for 2018.