Centennial Seeds was founded in August 2009 by with the aim of developing and producing high quality cannabis seeds for medical purposes.The founder saw the obvious need for reliable and well researched genetics in his local area. For some time previous to starting Centennial seeds he had been breeding and perfecting his seed production methods, early on recognising the value of preserving geographically isolated ‘landrace’ strains for use as breeding parents. This led to the creation of a private cannabis seed bank with over three hundred distinct genetic lines. Centennial Seeds’s library represents a fantastic body of genetic material spanning five continents. Its value lies in the wonderful variety of chemotypical and physical characteristics that nature has designed and evolved in Cannabis sativa, from high THC strains to those rich in CBD or with distinct growth patterns, smells, leave shapes etc . The distinct characteristics are many, and all deserve research.Centennial Seeds is proud to offer cannabinoid readings for strains where possible. They believe this should give buyers a better indication as to the potential of the genetics. All development testing and results given have been produced by FSL from dried material grown in Centennial Seeds’s facilities under standardized conditions.

After more than two years in the making the Rio Negro Colombian Sativa seed is finally finished. This heirloom Colombian cannabis variety is both vigorous and easy to grow and is an excellent choice for either indoor or outdoor cultivation.

Grown indoors the plants will finish flowering in 10 - 11 weeks. In Northern Colorado’s latitudes they will finish outdoors in early October.

The Rio Negro Colombian Sativa is highly productive and produces a dense and very fragrant flower with complex pine and citrus flavors. It is a pleasure to trim.

The Rio Negro Colombian is a classic equatorial Sativa type. Its effects are both clear-headed and stimulating. This variety is perfectly suited for active minds and bodies alike.
In a marketplace filled with hundreds if not thousands of seed varieties, this is without a doubt one of the most unique varieties I have had the chance to work with.