Compare Sweet Harlem Diesel with more feminised cannabis seeds, browse citrus cannabis strains, or read the PrimeStrains genetics journal.
Sweet Harlem Diesel from Sumo is a feminised seed line built on a cross between Sour Diesel and a Sweet Afghani, the latter itself descended from an old Afghan indica strain blended with a Honey Rock-type parent. Breeders brought the American citrus-and-diesel character together with a sweeter, fruit-led profile. Expect a bright aroma that blends citrus notes with a fuel-like diesel backdrop and a fruity finish. The genetic split leans towards sativa at roughly six parts to four, producing a balanced hybrid with an upbeat, energetic and creative feel. Flowering is listed at around ten to eleven weeks. Indoor plants are noted to reach roughly 120 to 150 cm, while outdoor plants can grow to 200 to 230 cm tall. Stated yields are 300 to 400 grams per square metre indoors and 450 to 600 grams per plant outdoors. Its name nods to its American origins and its Dutch refinement, making it an appealing choice for growers seeking a lively, inspiring hybrid.