Genetics
HomeStrains › Double Jam
Pure sativa retail shopping label — not genetics

Double Jam Strain

Double Jam is a pure sativa strain (Chocolate Diesel × Jamaican Purple). 105-day flowering.

Median THC
Flowering
105 days
Breeder releases
1
Avg rating

Indica / Sativa — retail shopping guide

Sativa 100%

Indica, sativa and hybrid are a retail shopping convention — not a reliable guide to genetics or effects. When researchers analysed 89,923 commercial samples across six states, these labels did not predict a plant’s terpene or cannabinoid profile, and a genome-wide study found sativa- and indica-labelled plants to be genetically indistinct (PLOS ONE 2022; Nature Plants 2021). The labels are so fluid that AK-47, a hybrid, won “Best Sativa” at the 1999 Cannabis Cup and “Best Indica” four years later. For an accurate, genetics-true picture, see the chemotype above.

Genetics & Lineage

Parents
This strainDouble Jam
Descendants (6)

Breeder releases (1)

BreederTHCFloweringSeedsRating
Underground Seeds Collective105dregular

About Double Jam

The DoubleJam, two Jamaican lineage, a preserved since 1985, the JBM and the other from the seventies the Lambsbread. The mother is the clone "purple Lambsbread" and the father JBM. Some pheno have many colors purple end of flowering. Phenotypes from 14 to 20 weeks of flowering. Cerebral high euphoric / socializing or rather electric and psychedelic as phenotypes, no ceiling for many pheno! Very destabilizing. Taste: fruity / floral / spicy Strech: significant X8 to X20 Flowering Time: 14-16 weeks Harvest per m2: more than 600 grams

Frequently asked questions

What are the genetics of Double Jam?
Double Jam comes from Chocolate Diesel × Jamaican Purple.
Is Double Jam indica or sativa?
Double Jam is classified as pure sativa.
How long does Double Jam take to flower?
Double Jam flowers in about 105 days.
Is Double Jam available as feminized or autoflowering seeds?
Double Jam is offered as: regular.