Check out these strains for extreme north or south climates: Hindu Kush Automatic, and Early Skunk, which is also available feminized.
Climate is the biggest consideration when it comes to choosing an outdoor strain. People living in the far north of the northern hemisphere or the far south of the southern hemisphere (in the boreal or sub-polar climate zones) will be severely restricted in their choice of strain. The further away from the equator one is located, the shorter the growing season will be before the winter cold makes it impossible to continue.
Characteristics of cool-temperate climates are:
- Long, sunny summers
- Mild winters
- Seasonal variation in day length
- Temperatures remain favourable until as late as early December, meaning that late flowering varieties can be planted (such as sativa)
For those in equatorial and tropical zones we recommend the Durban and Jamaican Pearl strains.
Some commercial strains have been developed for far north/south climate zones. These strains complete their growing cycle very early, and have been bred to withstand frost and cold—while still producing significant amounts of cannabinoids including THC.
This phenomenon is due to the direction of the prevailing winds that carry moisture across the oceans to the land. There are exceptions to this rule. For example, the eastern U.S. is generally more humid than the west. This is due to north-to-south ocean currents causing the Pacific Ocean to be cooler than the Atlantic (which is warmed by south-to-north currents from the equator) at the same latitudes.
If growing in warm-temperate zones, the possibilities are almost endless. In these climates, the likes of Mexican Sativa and Purple Haze can thrive. But these certainly aren’t the only options. A selection of strains suitable for the warm-temperate zones can be found here.
Light intensity reduces with distance from the equator, so even in summer plants will have fewer lumens available to them than their temperate and tropical counterparts. Cannabinoid production (particularly THC) is fundamentally linked to light intensity, as hemp and ruderalis strains found in northern latitudes are low in THC (although they may be high in CBD and other cannabinoids).
Because every climate is different, you have to choose your strains wisely to achieve the best harvest. Let us help you with that and check our guide!