Gorilla Glue #4 Auto

Here is what Gorilla Glue #4 delivers at harvest: 400-600 g/m2 per square metre indoors, 500-750 g/plant per plant outdoors in Irish conditions, with resin production peaking at 28% THC. Those numbers tell a story when you work backwards through the 8-10 weeks window. Weight distribution across the 8-10 weeks cycle is pleasingly even, with a noticeable surge in the closing two weeks that rewards growers who resist harvesting prematurely. The 60/50 balance means you get both calyx stacking density and respectable trichome spread. For outdoor growers, the ideal harvest window lands between mid-September and the first week of October — late enough to capture the full caryophyllene terpene development, early enough to beat the autumn rain that ends the Irish season.

To reach the upper end of this strain's yield potential (400-600 g/m2 indoors, 500-750 g/plant outdoors), focus your efforts on three critical windows during the 8-10 weeks period.

Window 1: The first 10 days after flowering begins. Stretch management determines canopy uniformity, which directly impacts light distribution and final yield. Moderate 30-40% stretch is typical. One round of low-stress training on the tallest shoots keeps everything level.

Window 2: Weeks 3-5 of bloom. Caryophyllene terpene biosynthesis ramps up during this period. Maintain a day/night temperature differential of at least 6-8°C to encourage terpene accumulation. Outdoors in Ireland the sea keeps that swing narrow — a maritime climate has a smaller diurnal range than a continental one, and the midland counties away from the coast are the only places that reliably deliver it. Indoor cultivators should target 25-26°C during lights-on and 18-20°C during lights-off. Supplement with potassium-heavy bloom nutrients at EC 1.6-1.8.

Window 3: Final 10-14 days before harvest. Cease all nutrient input and flush with pH-adjusted water. Monitor trichomes daily with a 60x jeweller's loupe — harvest at 10-15% amber for a balanced effect. Outdoor growers: this window typically falls through the second half of September.

Flowering: 8-10 weeks. Indoor yield: 400-600 g/m2. Outdoor yield: 500-750 g/plant. Plant height: 60-100 cm. Rated easy difficulty.

The sensory arc of Gorilla Glue #4 unfolds in stages. Initial inhalation at 28% THC brings a warm peppery spice that tingles at the back of the throat. The euphoric, relaxed, uplifted effects emerge within minutes, presenting as a simultaneous head-and-body experience. Mental clarity remains intact whilst the muscles release tension progressively. This dual action makes it adaptable — a lighter dose suits afternoon tasks, a heavier dose transitions seamlessly into evening relaxation. The limonene secondary terpene adds a distinct layer: a mood-elevating brightness that counterbalances any heaviness.

Primary: Caryophyllene · Secondary: Limonene · Tertiary: Myrcene. Flavour translation from flower to vapour and smoke differs with this terpene combination. Low-temperature vaporisation (180-188°C) highlights the limonene and myrcene notes whilst keeping caryophyllene as a foundation. Higher temperatures or combustion flatten the profile into a single-note experience — still pleasant, but lacking the complexity that makes this cultivar genuinely interesting to those who appreciate flavour.

Who grows Gorilla Glue #4 successfully? Balcony and back-garden growers in Dublin, Cork and Galway. Rural cultivators wanting a crop that is finished and dry before the autumn weather closes in. Indoor growers with limited headroom in small tents. The autoflowering genetics run on their own internal clock — no light schedule adjustments, no stress about light leaks, and harvest arrives 10-12 weeks after germination regardless of the season. Difficulty is rated easy, meaning a moderate learning curve that rewards attention without demanding laboratory-grade conditions. Delivered nationwide in discreet, unbranded packaging with sourced grow data on every strain page.