CannaSelection Strain Finder · Strain
CBD-dominant strainHarlequin
Harlequin is documented as a clonally propagated, CBD-focused phenotype with a complex landrace heritage. The source cites Colombian, Thai, Swiss and Nepalese influences, a sweet, syrupy aroma, rapid flower formation and heavily frosted, dense flower tops.
View all strainsCharacter profile
Aroma, effects and terpenes
Aromas
Effects
- heavy
Cannabinoid profile
Recorded ranges
These values are intended for orientation. Actual levels may vary depending on the batch, phenotype and cultivation environment.
Genetics
Parentage and family tree
Harlequin is shown at the top. The documented parent lines follow below.
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StrainHarlequin
- ParentsColumbian Gold
- ParentsThailand
- ParentsSwitzerland
- ParentsNepal
Editorial profile
Harlequin in detail
Origin & classification
In the detailed source, Harlequin is described not as a simple modern cross, but as a single phenotype of a plant originally bred for hashish. It is listed as 75 percent Sativa and 25 percent Indica. The Sativa side is said to include a Colombian Gold line from the early 1970s, a Thai line from mountainous regions near Laos and a Swiss landrace; the Indica contribution is attributed to Nepal. This historical account comes from a single source.
Aroma & taste
According to the text, the strain was distributed as a clone through participating Project CBD dispensaries in the San Francisco Bay Area. This aligns with the database designation “Clone Only Strains”, which describes a type of distribution rather than a conventional breeder. No named breeder is identified. The complex heritage should therefore not be simplified into a precisely documented four-way cross with a confirmed sequence.
Terpene profile
The aroma and taste are described as sweet and almost syrupy-heavy. The structured aromas add blueberry, while an English short description mentions soil, mango and herbal musk. Since these profiles differ considerably, only the sweet baseline and the fact of variable aroma descriptions can be considered certain. Individual fruit notes are not presented as universal.
Effect tendency
According to the source, Harlequin requires approximately 60 to 70 days indoors to complete flowering, corresponding to around nine to ten weeks. Flower formation is said to become visible comparatively early. In the final weeks, the heavy colas require support. The flower tops and trichomes are described as so abundant that plants can appear heavily “frosted”. Drying is also said to take up to three weeks longer than for the strains compared in the source.
Cannabinoids, flowering & appearance
Particular attention is given to an early laboratory observation: leaves from two vegetative clones were measured at approximately four percent CBD and two percent THC. The source itself raises questions about transferability. These values concern leaves at a specific developmental stage and must not be presented as typical flower values or as a fixed strain range. The classification as a CBD strain remains qualitative rather than quantitatively substantiated.
Further classification
A modern short source describes Harlequin as clear and balanced for daytime use; the structured effects field, by contrast, lists “heavy”. This conflict prevents an unequivocal description of the effects. The most reliable points are the historical landrace heritage, clonal distribution, sweet aroma, early flower formation and pronounced frosting. Effects and cannabinoid information require batch-specific verification.
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Frequently asked questions about Harlequin
What type of strain is Harlequin?
We classify Harlequin as a CBD-dominant strain with the parentage Columbian Gold × Thailand × Switzerland × Nepal.
What genetics are behind Harlequin?
Harlequin’s parentage is Columbian Gold × Thailand × Switzerland × Nepal.
What does Harlequin smell and taste like?
In terms of aroma, Harlequin is primarily sweet and blueberry-like. Depending on the batch and phenotype, the expression may vary in intensity.
What effects does Harlequin tend to have?
We primarily describe Harlequin as heavy. Effects are subjective impressions and are not a medical promise.
How high is Harlequin’s THC content?
Harlequin is listed with a THC range of up to 2%. Actual values may vary depending on the batch, phenotype and cultivation environment.
How high is Harlequin’s CBD content?
Harlequin is listed with a CBD range of up to 4%. This value may also vary for the individual batch.
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