Girl Scout Cookies Auto Week by Week Grow Diary

Three Girl Scout Cookies Autoflower ladies went into the tent this round, and the goal was simple: keep them healthy, train them smart, and pull down a respectable harvest from a compact space. Using a mix of Real Growers and Dr. Earth nutrients in a custom soil/perlite blend, the plants were given just what they needed without overcomplication. The Electric Sky 180 V2 LEDs from The Green Sunshine Company carried the grow from seedling to chop. By the end of 13 weeks, each plant stacked up nicely, finishing with 85 grams of dry bud apiece—sticky, frosty, and true to the GSC name.

Grow Setup

Grow Diary

Week 1 (Seedling stage)

The first week was smooth sailing. All three seeds cracked quickly and pushed out healthy cotyledons. They sat comfortably under the Electric Sky 180, with temps steady in the mid-20s and humidity hovering around 60%. The soil/perlite mix kept the roots happy, and only light waterings were needed to keep them moist without drowning them. Leaves stayed a deep, even green—no drama.

Week 2 (Early Veg)

By the second week, each plant had a few sets of true leaves and was settling in nicely. Roots dug in deep and growth picked up pace. The light intensity was bumped slightly, and they handled it well—staying squat and sturdy. A touch of Real Growers nutrients was introduced, and the response was positive. Canopy was even, with no stretch issues thanks to the LEDs being dialed in just right.

Week 7 (Training & topping)

At week seven the tent was filling out, and it was time to get hands-on. LST was started to open the plants up, gently pulling branches outward to let light hit every angle. Each plant also got topped, slowing down the main cola so the side branches could catch up. This combination kept the canopy level and ready for flower. The girls bounced back quickly, showing just how resilient GSC autos can be.

Week 9 (Early flower, more training & defoliation)

By week nine, the first pistils were spreading across the nodes and the stretch was in full swing. A second round of LST kept the branches from clustering, and another topping session was done to balance the tops. A light defoliation followed—mainly removing big fan leaves shading bud sites. The nutrient program shifted toward bloom inputs, and the plants responded with thickening stems and rapid bud set. The tent smelled faintly sweet already, a hint of the GSC profile to come.

Week 12 (Mid-to-late flower)

By week twelve, colas were stacking up with weight, and the trichomes really started to frost over the sugar leaves. The aroma was unmistakable: sweet, earthy, with that cookie-dough twist GSC is famous for. Temperatures were kept around 23 °C-25 °C, humidity pulled down closer to 45%, and airflow maxed out to avoid any issues with mold. The buds were dense and sticky to the touch—exactly what you want to see at this point.

Week 13 (Harvest)

The last week was all about finishing strong. A final defoliation thinned out the canopy for airflow and to expose lower bud sites. Trichomes shifted from mostly cloudy to a good mix of cloudy and amber, so the timing was right. Plants were flushed with clean water, then taken down and hung to dry. After cure, each plant came in at just over [85.05:gr] of dry bud, with chunky nugs sparkling in resin.

Grower’s Reflections

This run showed just how well Girl Scout Cookies Autoflower adapts to training in a small space. The LST and topping in weeks 7 and 9 were the game-changers, keeping the canopy low and balanced under the ES180s. Defoliation at weeks 9 and 13 cleared the way for airflow and light, giving the buds room to bulk up without risk. The Real Growers and Dr. Earth nutrient combo kept things simple but effective, producing healthy plants from start to finish. The smoke turned out exactly as expected—sweet, earthy, minty, and potent, leaning into both relaxation and a euphoric kick.

Final Numbers