Peak 19 by Sagarmatha
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Sagarmatha Seeds out of Amsterdam doesn't always get the mainstream hype they deserve, but real heads know their Peak 19 is an absolute powerhouse. Named after the original Western designation for Mount Everest, this old-school F1 hybrid lives up to the magnitude of its namesake. They took Stonehedge and slammed it into Matanuska Tundra, creating an indica-dominant beast that was highly sought after in the 90s and early 2000s for its sheer potency and reliability in the grow room.
In the dirt, Peak 19 is a vigorous, stocky plant that usually tops out around a meter tall. She’s built like a brick outhouse, pushing out thick, heavy colas that finish flowering in about 60 to 65 days. Growers loved her because she was predictable—you could bank on pulling about 400 grams per square meter of dense, spicy, and hashy buds that reeked of earthy musk. And you didn't have to baby her with perfectly dialed-in VPD or a complicated feeding schedule; she just ate what you gave her and stacked up the weight.
Smoking Peak 19 is a trip. Despite being heavily indica-dominant, the high isn't just a physical knock-out. It starts with a cerebral, thought-provoking rush that almost feels trippy before the Matanuska genetics take over and glue your boots to the floor. It’s the kind of smoke that makes you want to sit on a porch and stare at the stars while your body slowly melts into the chair. If you ever come across a pack of these old Dutch genetics, you're holding a piece of true Amsterdam history.
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Similar strains
| Breeder | Sagarmatha |
|---|---|
| Type | mostly indica |
| Flowering time | ±65 days |
| Environment | Outdoors |
| Lineage | Stonehedge × Matanuska Tundra |
| Descendants | Ultimate Peak, BR1947, Peak 19, Dutch Flowers - Peak 19 Special, Peak Flow, Baked Alaska |
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🧬 Explore the family: Stonehedge · Matanuska Tundra · Ultimate Peak · BR1947 · Peak 19 · Dutch Flowers - Peak 19 Special · Peak Flow · Baked Alaska
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Growing Peak 19: what to expect
As an indica-leaning plant, expect a modest stretch after the flip (roughly 50–100%) and dense bud structure — which makes late-flower humidity discipline the main risk: keep RH in the 40s once buds fatten to stay ahead of mold. Growers familiar with Stonehedge or Matanuska Tundra will recognize much of its behavior. Whatever the listing says, the cut in YOUR tent is the ground truth: log feedings, readings, and photos, and let the trends — not the label — drive decisions.
Peak 19 FAQ
How long does Peak 19 take to flower?
Peak 19 typically flowers in around 65 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Peak 19 an indica or a sativa?
Peak 19 is listed as mostly indica.
What are the parents of Peak 19?
Peak 19 was bred from Stonehedge × Matanuska Tundra by Sagarmatha.
What environment does Peak 19 like?
Standard cannabis bands work well: VPD 0.8–1.1 kPa in veg and 1.0–1.4 kPa in flower, with humidity stepping down from 65–75% as a seedling to 40–50% in late flower. See the stage-by-stage table on this page.
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