Iron Triangle Feminised

Here is what Iron Triangle delivers at harvest: Up to 400g/m² per square metre indoors, Up to 350 gr per plant outdoors in Irish conditions, with resin production peaking at 28% THC. Those numbers tell a story when you work backwards through the 56-63 days window. Weight distribution across the 56-63 days cycle is pleasingly even, with a noticeable surge in the closing two weeks that rewards growers who resist harvesting prematurely. The 44/56 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 limonene 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 (Up to 400g/m² indoors, Up to 350 gr outdoors), focus your efforts on three critical windows during the 56-63 days 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. Limonene 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: 56-63 days. Indoor yield: Up to 400g/m². Outdoor yield: Up to 350 gr. Plant height: about 180 cm (185 cm). Rated easy difficulty.

The sensory arc of Iron Triangle unfolds in stages. Initial inhalation at 28% THC brings a bright, almost sparkling citrus note that lifts the palate. The relaxed, happy, euphoric 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 caryophyllene secondary terpene adds a distinct layer: a grounding warmth that prevents the experience from feeling unanchored.

Primary: Limonene · Secondary: Caryophyllene · Tertiary: Linalool. Flavour translation from flower to vapour and smoke differs with this terpene combination. Low-temperature vaporisation (180-188°C) highlights the caryophyllene and linalool notes whilst keeping limonene 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 Iron Triangle successfully? Indoor growers seeking full control over their harvest timeline. Outdoor cultivators who want to decide exactly when flowering begins. Anyone with the space and patience to vegetate this plant to its full potential before triggering bloom. 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.