Short answer
Northern Lights is an indica. Sensi Seeds, the breeder that stabilized the line in the Netherlands during the 1980s, sells it as 100% indica. Leafly and other strain databases list it as indica-dominant. Growers describe short plants, fast flowering, and dense buds, three traits tied to indica labels.
northern lights weed strain review
Where the sativa question comes from
Northern Lights has a sativa parent. The cross pairs an Afghani landrace with a Thai sativa. Leafly lists both parents. A plant can carry sativa genes and still be sold as an indica. Breeders select for growth traits and for the effect they want. After several backcrosses, the indica side shapes the plant frame and finish time.
Northern Lights Weed Strain Review
Names add noise. The name Northern Lights gets attached to seed lines, clones, and CBD products with different genetics. Two products with the same name can test at different THC levels and terpene profiles.
Northern Lights Strain: Effects and Flavor Guide
Plant data
- Type: indica, listed as 100% indica by Sensi Seeds
- Parents: Afghani and Thai
- Flowering time indoors: 45 to 50 days
- Height indoors: about 100 to 130 cm
- THC: 16 to 21 percent in tested flower samples
- CBD: under 1 percent in most samples of the standard strain
Sensi Seeds reports a 45 to 50 day flowering period and a compact frame. Short internodes and wide leaves appear in most descriptions. Yield runs moderate to high for the plant size.
is northern lights indica or sativa
THC, CBD, and terpenes
Published strain profiles put THC at 16 to 21 percent. CBD stays low, under 1 percent. Myrcene leads the terpene list in most reports, with caryophyllene, limonene, and pinene behind it. The aroma reads as pine, soil, and sweet citrus. Myrcene is one reason users describe the effect as heavy and sleepy, though lab data on terpenes and mood is thin.
Does indica or sativa predict effects?
Not in a reliable way. A 2015 PLOS ONE study by Sawler and coauthors found no genetic pattern that splits cannabis into indica and sativa groups. Later reviews reach the same point. The labels come from plant shape, climate, and grower habit, not from a chemical rule. Two samples of the same strain can differ in THC and in terpene mix. Product labels help, but a certificate of analysis with cannabinoid and terpene numbers tells you more.
If you shop for Northern Lights CBD
Some sellers offer CBD-heavy versions of Northern Lights. These are separate seed lines, not the original. Read the certificate of analysis before buying. Check THC, CBD, and total cannabinoid numbers. US hemp products must stay at or under 0.3 percent THC by dry weight under federal law. A product at that level will not produce the same effect as a high-THC flower sample.