Genetics: Harlequin is believed to be a three-way cross of three landrace strains; Colombian Gold (sativa), Thai (sativa), and an unknown Swiss landrace. Harlequin is usually identified as being a sativa dominant hybrid, indicating that this third landrace was likely an indica of some sort. The website SmokeReports identifies this third strain as Swiss Sativa, and also indicates a fourth strain crossed in, which is a Nepalese landrace.
Cannabinoid/Terpene Profile: Harlequin is noted as being a strain rich in cannabidiol (CBD). Harlequin usually ranges between having a 2:1 THC:CBD ratio and a 1:2 THC:CBD ratio. Harlequin is commonly found in both THC-rich and CBD-rich varieties as well as in a 50/50 balance. Harlequin also appears to have slightly elevated levels of Cannabigerol (CBG).
History and Background: Harlequin was one of the first six CBD-rich strains identified by Harborside Health Center, Steephill Labs, and Project CBD during their first round of lab testing back in 2008. Harborside was one of the first cannabis dispensaries featuring CBD-rich medicine, way back in 2009, before Charlotte's Web was ever grown or had a chance to appear on CNN. The partnership between Project CBD, Steephill, and Harborside led to many of the advances we have seen in lab testing accuracy and to the rediscovery of CBD. In their early testing, a strain was not viewed as being a CBD-rich strain unless it had over 4% CBD; that is still a commonly used definition for when a product can be deemed CBD-rich.
Due to it's roughly 1-1 ratio of THC:CBD, Harlequin is ideal for sufferers of chronic pain who tend to benefit the most from a balance of both THC and CBD. This 1-1 ratio is the best for pain because both THC and CBD work to reduce pain through different mechanisms in your body, this balanced ratio best takes advantage of the benefits of both while minimizing the drawbacks. Many other conditions, like anxiety, depression, PTSD, and more, can also benefit from this balanced ratio. While normally children with epilepsy benefit the most from using a ratio of CBD:THC that is very heavy on CBD, such as a 1:18 ratio. As they age, many parents report needing more THC than they formerly did, this could make Harlequin an option for older children who suffer from epilepsy or for adults who have seizures.