Iron Triangle Feminised

The way to plan Iron Triangle is backwards from the day you intend to cut, with Up to 400g/m² per square metre indoors and Up to 350 gr per plant outdoors as the figures you are working toward, at 28% THC. Count 56-63 days back from that date and you have your flip date. Weight comes on evenly across 56-63 days, with a late surge that punishes impatience. The 44/56 balance gives you stacking density and broad trichome cover together. Outdoors, late March to late April is the sweet spot — after the summer humidity has broken, before the first Highveld frost.

Yield on Iron Triangle — the Up to 400g/m² indoors and Up to 350 gr outdoors quoted above — is decided in three short stretches of the 56-63 days bloom rather than evenly across it.

The first ten days after the flip. Whatever stretch happens here sets your canopy, and an uneven canopy wastes light for the remainder of the grow. Stretch of 30-40% is normal. One round of low-stress training on the tallest shoots levels it out.

Weeks three to five. This is when limonene production climbs, and it answers to the gap between day and night temperature rather than to either number on its own. Keep at least 6-8°C between them. Outdoor growers in the interior provinces get that swing free in March and April; indoors, aim for 25-26°C lights-on against 18-20°C lights-off, with potassium-led bloom feed at EC 1.6-1.8.

The last ten to fourteen days. Stop feeding, flush with pH-corrected water, and read trichomes daily under a 60x loupe. Cut at 10-15% amber to keep both sides of the hybrid in play. Outdoors that usually lands between late March and mid-April.

Difficulty: easy. In flower for 56-63 days. Stands about 180 cm (185 cm). Indoors it returns Up to 400g/m². Outdoors, Up to 350 gr a plant.

The first thing Iron Triangle does at 28% THC is lift it with a bright, nearly effervescent citrus. The relaxed, happy, euphoric effects follow within minutes, across head and body at once. Thinking stays clear while muscle tension drains off, which leaves the dose as the deciding factor — light for the afternoon, heavier and it moves into the evening without a jolt. Caryophyllene sits underneath all of it, adding a grounding warmth that keeps the whole thing anchored.

Leading with Limonene, then Caryophyllene, and Linalool underneath. How this combination survives the move from flower to vapour or smoke is not a given. Held low, at 180-188°C, the caryophyllene and linalool notes stay legible with limonene underneath them. Run it hotter, or burn it, and the three collapse into one — still pleasant, but without the separation that makes this cultivar worth paying attention to.

Who does well with Iron Triangle? Indoor growers who want the harvest date to be their decision. Outdoor growers who want to choose the moment flowering starts. Anyone with the room and the patience to veg it properly before flipping. It is rated easy, which in practice means a moderate learning curve that rewards attention without needing laboratory conditions. Sent nationwide in plain, unbranded packaging, with sourced grow data on every strain page.