Grow Diary Granddaddy Purple

Granddaddy Purple - Week 10 of Flower (Flush)

Week 10 marked the final ripening window for both GDP plants. Bud development had fully plateaued, calyxes stayed swollen and resin-heavy, and senescence progressed evenly across the canopy. Older fan leaves continued to fade while sugar leaves remained well-coated, consistent with a clean finish.

Lighting remained stable to avoid late-stage stress: ~725 PPFD at the canopy (DLI ~31), no UVA.

Environment stayed controlled and dry: ~71–74°F daytime, mid-60s°F nights, with RH generally ~40–45% both day and night.

Trichome Analysis
Format (% clear / % cloudy / % amber)

GDP1:
Top: 8 / 88 / 4
Middle: 12 / 83 / 5
Bottom: 20 / 75 / 5
Overall: ~13 / 82 / 5

GDP2:
Top: 6 / 91 / 3
Middle: 12 / 85 / 3
Bottom: 22 / 73 / 5
Overall: ~13 / 83 / 4

Feeding was discontinued. Both plants received only plain, pH-adjusted water every other day (input 115-140 ppm, pH ~6.2), supporting natural fade heading into harvest.

Aroma remained fully expressed and stable - dark berry/grape up front with deeper earthy/skunky undertones and faint floral notes. Coloration peaked this week, with pronounced purples and late-autumn fade across remaining foliage and buds.

Next entry will cover harvest execution and final dry yield.