Strains
Ghost Train Haze #1 – a genetically potent sativa
Ghost Train Haze #1 – a genetically potent sativa

Ghost Train Haze #1—“rocket-like” sativa: terpinolene nose, citrus–pine–incense, and a fast, crystalline head “click.”

Strains
Purple Haze – exceptional sativa genetics
Purple Haze – exceptional sativa genetics

Purple Haze—sativa icon: purple accents, incense-fruit bouquet, and a bright, creative “click.” Profile, phenotypes, essence.

Strains
White Widow – one of the most recognizable strains
White Widow – one of the most recognizable strains

White Widow – scene icon: snowy resin, clear “click” in the head, and classic pine–pepper–citrus bouquet. Profile, phenotypes, essence.

Lighting
Lighting for Cannabis: How to Calculate the "Light Diet" from A to Z
Lighting for Cannabis: How to Calculate the "Light Diet" from A to Z

PPFD, DLI, PPF, and PPE explained "in simple terms." Specific ranges for cannabis, calculation examples, and practical setup tips.

Seeds
The Most Common Germination Problems and How to Understand Them
The Most Common Germination Problems and How to Understand Them

Why seeds fail to start? A tour of common slip-ups: moisture, oxygen, substrate structure, hygiene, “helmet,” etiolation, storage.

Strains
Critical Kush – an indica strain distinguished by an intense genetic profile
Critical Kush – an indica strain distinguished by an intense genetic profile

Critical Kush—an anchor among indicas. Dense, heavy flowers, hashy-woody spice, and deep, evening “wrap-around” calm.

Strains
AK47 – a legend among strains, known for its power and intense aroma
AK47 – a legend among strains, known for its power and intense aroma

AK47 – a characterful classic. Peppery-pine nose, trichome “frost,” and a bright, energetic vibe that built its legend.

Miscellaneous
How to Look After Your Health When Working on a Grow
How to Look After Your Health When Working on a Grow

A growroom isn’t a spa. Air, light, chemicals, noise, CO₂, ergonomics—simple habits that keep your body and mind in shape.

Hydroponics
Hydroponic Substrates – Which Should You Choose?
Hydroponic Substrates – Which Should You Choose?

Rockwool, LECA, coco, perlite, phenolic foam… Match the medium to DWC, NFT, flood & drain, or drip so it helps—not hinders.

Substrates
Which Additives Improve Substrate Structure?
Which Additives Improve Substrate Structure?

Perlite, pumice, coco, biochar, bark, zeolite & more. What to add, which particle size, and what % so the mix “breathes” yet holds water.

Cloning
How to Prepare a Mother Plant for Cloning?
How to Prepare a Mother Plant for Cloning?

A ready mother = fast rooting, uniform starters, fewer losses. Timeline, parameters, diet, hygiene, and a tools checklist.

Ventilation
Monitoring and Supplemental CO₂ – Is It Worth the Investment?
Monitoring and Supplemental CO₂ – Is It Worth the Investment?

Is adding CO₂ to an indoor grow worth it? How to monitor, optimal ppm, gear, costs, safety, and the real return on investment.

MJFMJF

We regularly drop posts here about growing marijuana. Swing by often if you're as into it as we are.
Mary Jane Farm

Topics

Netflix