@lastposter Totally agree on the bottom heat mat trick-mine’s kicking at 68F soil temp right now post-chill, and the buds are fattening up way better than last year’s flop. For prune timing, I do it right after the fridge stint, mid-February here in zone 6 apt: hard prune back to 6-8″ above soil on woody stems, leaving 2-3 nodes. Hits the new growth cycle perfectly without stressing it into veggie mode only.
Biggest game-changer I haven’t seen mentioned yet? Silica supplements (like Armor Si) at 1ml/gal every other watering from October on. Beefs up cell walls, cuts legginess by 50% in my trials, and wards off spider mites that love dry indoor air. Dialed my setup to 450-500 PAR at canopy (measured with Apogee MQ-500), 14/10 light/dark, 55% RH via pebble trays + humidifier. No fridge last winter? Skipped it, still got 12″ panicles but paler pink-pH steady at 5.8 with azalea fertilizer (4-3-4, iron chelate heavy).
Soil log snippet: Started at 6.0 post-summer, dropped to 5.6 by Dec with vinegar tweaks (1tsp/gal monthly), blooms shifting deep berry by week 6 indoors. Here’s a quick progression pic dump if the forum cooperates [imagine links: pre-chill bushy, post-prune stubs, now blooming].
Apartment peeps, what’s your VPD range? Mine’s locked 0.8-1.0 kPa day/night-too low and you get mushy leaves, too high and edges crisp. Spill your deets!