THC
16.6–19.8%
CBD
0.2%
Genetics Split
Jamaican Haze, a 90% sativa cross from T.H.Seeds, needs 11 to 13 weeks to flower and tests 17 to 20% THC.
No effect, terpene, flavor or medical-use data specific to Jamaican Haze has been published yet, so we don't guess. For what sativa strains usually do, see the effects guide.
THC in this profile
19.8% THC
Growing Information
Flowering Time
11–13 weeks
Difficulty
difficult
Height (Outdoor)
200-300cm
Yield (Indoor)
400-500 g/m²
About Jamaican Haze
This is T.H.Seeds' version of Jamaican Haze, a straightforward cross of Jamaican and Haze genetics, landing at a 90 percent sativa, 10 percent indica split that leans about as sativa-dominant as the category gets. That heritage shows in the grow profile: this is rated a difficult plant to cultivate, with a long 11-to-13-week flowering window that tests longer patience than most modern hybrids demand. Outdoors it can stretch to 200 to 300 centimeters, true to old-school haze growth habits, while indoor growers can expect 400 to 500 grams per square meter for the effort. THC testing sits between about 17 and 20 percent, respectable rather than extreme, consistent with a lineage built for the classic sativa experience over sheer potency. No terpene or flavor panel accompanies the listing, but the grow specs alone mark this as a plant for patient, experienced cultivators.
Where to Buy Seeds
We may earn a commission from purchases made through these links.
Frequently Asked Questions about Jamaican Haze
Is Jamaican Haze an Indica, Sativa, or Hybrid?
Jamaican Haze is classified as a sativa cannabis strain bred from a genetic cross of Jamaican × Haze.
What cannabinoid content is reported for Jamaican Haze?
Jamaican Haze: 19.8% THC and 0.2% CBD reported in our data. The THC figure, when present, is the upper end of the reported range, not a typical measured dose. Potency can vary across harvests, phenotypes, and growing conditions.