Purple Punch flowers in 8 to 10 weeks indoors. Most growers cut at 8 to 9 weeks. Indoor yield is 350 to 600 grams per square meter. Outdoor plants yield 500 to 700 grams each and finish in late September to early October.
purple punch flowering time and yield
Flowering Time
Purple Punch is an indica-dominant hybrid. It is a cross of Larry OG and Granddaddy Purple. The plant stays short and forms dense buds. Indoor flowering takes 56 to 70 days after the light cycle flips to 12 hours on and 12 hours off.
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Some breeders list 8 weeks for select phenotypes. Add 7 to 10 days for ripeness checks. Trichomes turn from clear to cloudy. Amber trichomes appear at 10 to 30 percent for peak THC. Pistils turn orange and curl inward. Calyxes swell.
Outdoor harvest runs from the last week of September to the first week of October in the northern hemisphere. At latitude 40°N, plants finish near October 1. Cold nights and rain in October raise the risk of bud rot. Cover plants or harvest early if rain persists.
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Yield
Indoor yield ranges from 350 to 600 grams per square meter. Breeder claims reach 600 grams per square meter under ideal conditions. Home growers often see 300 to 450 grams per square meter with a 4 to 6 week vegetative stage.
Outdoor yield ranges from 500 to 700 grams per plant. Long seasons and large root zones push single plants to 1,000 grams. Plant height outdoors reaches 1.5 to 2.5 meters. Indoor height stays at 60 to 120 centimeters.
Yield depends on light, pot size, and training. Use 10 to 20 liter pots indoors. A 400 watt LED over 1 square meter can produce 0.5 to 1 gram per watt. Low stress training and topping create more bud sites. Defoliation at day 21 of flower opens light to lower buds.
Grow Notes
- THC content tests at 18 to 24 percent in most lab reports.
- Terpenes include caryophyllene, limonene, myrcene, and pinene.
- Aroma is grape, blueberry, and candy.
- Effects are relaxing and sedating. Best for evening use.
- Humidity above 50 percent in late flower raises mold risk.
- Keep night temperatures within 10°F of day temperatures to limit stretch.
Quick Reference
- Indoor flowering: 56 to 70 days
- Outdoor harvest: late September to early October
- Indoor yield: 350 to 600 grams per square meter
- Outdoor yield: 500 to 700 grams per plant
- THC: 18 to 24 percent
- Indoor height: 60 to 120 centimeters
What Numbers Do Not Cover
Yield figures come from breeders, seed banks, and grower reports. No group audits every harvest. Two growers with the same seeds can see a 40 percent gap in yield. Light, temperature, nutrients, and root space drive the result. Use published ranges as a baseline, not a promise.
Buy seeds and flower from licensed sellers in states with legal cannabis programs.