Cannabis 101 

Cannabis education and information on ways to consume, how to grow or harvest, and more.

Tips for Growing J1 Cannabis

Ever wanted to grow your favorite strain? Leafly and General Hydroponics are teaming up on a series of grow guides that will equip you with all the tips and tricks you need to grow different strains successfully.


Strain Overview: J1, also called Jack One, is a cross between Jack Herer and Skunk #1. The strain is known for its elevating cerebral high that leaves you feeling calm and collected. The aroma is similar to Jack Herer: skunky, piney, and with sweet notes of citrus.

Grow Techniques: Grow indoors or outdoors in complex healthy soils to keep the flavor of this strain as strong as possible. The buds are known to grow dense, which means you’ll need quality air circulation as well as protection from rain and humidity to prevent mold.

Flowering Time: 8 to 9 weeks

Yield: Moderate

Grow Difficulty: Moderate

Climate: This strain prefers low humidity (40% RH) and temperatures between 68 and 80 degrees Fahrenheit.

Indoor/Outdoor: Will thrive indoors or outdoors. If growing outdoors, J1 performs best in a Mediterranean climate.

Feeding: Feed this strain carefully as it may be sensitive to overfeeding. Utilize amendments to make a healthy soil that will aid the production of its notable aroma.