A comparison of the differences between sativa and indica marijuana strains.
Sativas have an uplifting effect that some people say helps with depression and ADHD, and boosts creativity. Sativas may also cause feelings of anxiousness or stress.
Indicas have more of a physical effect, making the user feel relaxed. Indicas may help with insomnia or anxiety, and help treat muscle spasms and other types of pain.
Low light will cause stems to stretch and buds to not be tight.
Reports from many users suggest the highs from sativa vs. indica dominant strains are different.
The effect of a Sativa is described as uplifting, cerebral and psychedelic. An indica high is described as relaxing and desensitizing.
Research suggests the differences in highs may have to do with the ratios of active cannabinoids, THC and CBD.
A Sativa typically has a higher ratio of THC to CBD, whereas indica has a higher ratio of CBD to THC.
CBD seems to have a mitigating effect on THC. Users who experience anxiety or panic from THC may experience less of these symptoms when the ratio of CBD to THC is higher.
Since the 1970s marijuana plants have been selectively bred and experimented with to produce superior hybrids – genetic mixes of sativas and indicas. These hybrids produce more THC, different types of highs, grow faster, produce more buds, grow to desirable heights, and are more hardy. Selective breeding aims to combine the best characteristics of sativas and indicas and bring them out even more.
As a grower one of the biggest success factors is the quality of the genetics you start with. Seeds from a premium hybrid strain will pass along superior genetics and deliver the best characteristics.
Ruderalis is a third sub species of Cannabis. It is usually unwanted because it can’t be cloned doesn’t grow very big. But it does have has one desirable feature: an “auto-flowering” trait.
Flowering in sativa and indicas is dependent on how much light vs. darkness they get per day. In nature, the shorter days in the fall trigger flowering. Indoors, the gardener triggers the plant to flower by exposing the plants to 12 hours of light and 12 hours of darkness daily. Ruderalis is the only sub species of marijuana that flowers when it hits maturity, not as a physiological reaction to light.
To create an “auto-flowering” plant, sativa and indica hybrids are cross bred with ruderalis.