The dominant Indica genes of Girl Scout Cookies Extreme make it ideal for growing indoors. Because of its smallish stature, you can fit a lot of plants in a limited space. Nevertheless, it can also be very productive outdoors if you have a sunny Mediterranean-like climate. Moreover, the colder nighttime temperatures in the open air will encourage the plant to reveal its beautiful purplish hue. This is due to the presence of anthocyanins, a flavonoid that provides color as well as antioxidant and anti-inflammatory benefits.
These seeds are feminized, meaning they are 99.9% guaranteed to produce only female plants. As this white paper from 2017 explains, having male plants around has a detrimental effect on your crop. They carry pollen that will taint the females’ flowers. So, instead of having smokable buds – your main purpose for growing marijuana – you will be inundated with seeds. Eliminating the male sex chromosomes also permits a higher THC content. In the case of Girl Scout Cookies Extreme, it is an impressive 21%.
If you choose to grow indoors, be mindful of the temperature and relative humidity (RH). Your plant prefers a temperature between 68 and 80 degrees Fahrenheit (20 to 26.5 degrees Celsius). During the vegetative stage, keep the RH in the 50% to 60% range. Upon flowering, reduce it by 5% per week until it reaches 30%. This low RH will reduce the risk of mold and increase resin production.
As mentioned earlier, this strain will benefit from the Sea of Green growing technique. Indica-dominant strains like this one tend to grow fast, but with SoG you can force it to shorten its vegging period to only two weeks. As a result, you can experience the fruits of your labor much earlier. Just remember to switch your grow light schedule from 18/6 to 12/12 to induce flowering.
Outdoors, you can expect to harvest around the middle of October when the daylight hours get shorter. The maximum height of the plant will be about 66 inches (168 cm). If you want to boost the terpene level, use organic fertilizers such as worm castings, bone meal, or kelp instead of chemical nutrients. Blackstrap molasses, available at your local grocery store, can also improve the sweet fragrance of your buds. Add half a teaspoon per gallon of water in the final few weeks of growth.
As harvest time approaches, you will begin to see bright green calyxes surrounding the deep purple leaves. There will be pretty orange pistils swirling around the trichome-covered buds. These sugary trichomes are responsible for this strain’s tantalizing freshly-baked aroma. A properly dried and cured bud will be soft, fluffy, and moderately sticky.