How to grow Purple Punch

Breeder: Herbies
Genetics: Mostly Indica
THC: up to 20%
Type: Photoperiod, feminized seeds
Difficulty: moderate
Flowering: about 8 to 9 weeks
Flavors: berry, earthy

Indica-dominant Pyramid Seeds strain (Black Cherry Kush x Cherry Pie) at 25% THC, offering purple buds, sweet berry flavors, instant pain relief, and uplifting effects.

Indoor calendar for Purple Punch

Stage	When	Note
Germination	week 1	Warm, humid and dark until the sprout shows.
Seedling	weeks 2 to 3	Gentle light on 18/6.
Vegetative	weeks 4 to 7 (you decide)	Three to six weeks on 18/6; longer growth means a bigger plant.
Flowering	8 to 9 weeks after the switch to 12/12	Expect the plant to stretch in the first two to three weeks.
Harvest	around week 15 to 18	Depends on how long you let it grow first.
Dry and cure	three to four weeks more	One to two weeks drying, then at least two weeks curing in jars.

About 18 to 22 weeks from seed to cured buds, with 8 to 9 weeks of flowering.

Week by week

Germination: Days 1–7

Pop the seed.

Soak in a moist paper towel or plant 1cm deep in light, airy soil.
Keep warm (22–25°C), humid and dark until the sprout appears.
Moist, never soggy.

Seedling: Weeks 2–3

First true leaves.

Gentle light on 18/6, high humidity (~65%).
Tiny waterings near the stem; let the top dry between.
Quarter-strength nutrients at most.

Vegetative: Weeks 4–7 (you control length)

Build the plant.

Photoperiod: keep 18/6 as long as you want size, then flip to 12/12 to begin flowering.
Feed grow (high-N) nutrients; train (LST/topping) for an even canopy.
Indica-leaning: bushier/compact, keep airflow between colas.

Flowering: ~8–9 weeks of bloom

Buds bulk up.

Now on 12/12. Expect a 2–3 week stretch early, give headroom.
Switch to bloom (high-P/K) nutrients; lower humidity (~45%) to prevent bud rot.
Watch trichomes: mostly cloudy with some amber = peak ripeness.

Flush & harvest: Final 1–2 weeks

Finish clean.

Plain water (no nutrients) the last 1–2 weeks for a smoother smoke.
Harvest, wet-trim, dry slowly (~60°F / 60% RH, 7–14 days).
Cure in jars 2+ weeks, burping daily at first.

~15–17 weeks (plus veg time).

Growing Purple Punch outdoors

Outdoors in central Europe photoperiod plants start flowering in early to mid August, so Purple Punch, with 8 to 9 weeks of flowering, is usually ready in late September to mid October. That is late in the season: autumn rain and cold bring bud rot, so it suits a greenhouse, a dry southern spot or an indoor grow better than an open northern garden.

Drying and curing

Its berry notes come from the most volatile terpenes, the first to go in a warm, fast dry. Dry slowly around 18 °C and 60% humidity for 10 to 14 days and cure in jars to keep them.

How Purple Punch compares

At 8 to 9 weeks it sits right at the typical time for the 98 photoperiod strains in our guides.

Its THC, up to 20%, is in line with the typical 20% for these photoperiod strains.

Bred by Herbies, one of 50 Herbies strains with a grow guide here.

Similar strain	Flowering	THC	Breeder
Durban Dew	8 to 9 weeks	15%	Dutch Passion
Glueberry O.G.	8 to 9 weeks	20%	Dutch Passion
Frisian Dew	7 to 9 weeks	15%	Dutch Passion
Frisian Duck	7 to 9 weeks	10%	Dutch Passion

Effects

relaxing, uplifting, focus, euphoric

Questions

Is Purple Punch easy to grow?

Purple Punch is considered moderate to grow.

When is Purple Punch ready outdoors?

How strong is Purple Punch?

The breeder lists up to 20% THC. Real results depend on light, feeding and harvest timing.

When should I switch Purple Punch to 12/12?

When the plant is about half the final height you want: it can double in size during the first weeks of flowering. Flowering then takes about 8 to 9 weeks.

Grow Purple Punch with me on Telegram: what to do each week, a weekly check in, photo diagnosis and harvest timing. Free, no account.

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