High School Sweet Heart Breath by Socal Seed Vault
High School Sweet Heart Breath is one of those underground foundational strains you usually only hear about if you're deep in the clone-trading scene or hanging out on the THCfarmer forums. Socal Seed Vault started out just running cuts back in 2011 before bringing this beast to the masses as regular seeds. It leans heavy on the indica side, finishing up in a fast 55 days, which makes it an absolute workhorse for cash croppers and indoor heads alike.
If you trace the lineage back, you'll see it leans heavily on Gage Green Genetics' original High School Sweetheart, but Socal Seed Vault took it to the next level. They locked down an HSSB F2 male that became notorious in breeding circles for throwing insane girth and weight onto anything it touched. We're talking branches snapping under their own weight if you don't trellis them properly.
Because of that freakish F2 male, this strain is practically the grandfather to a whole lineup of heavy-hitters. Breeders have dumped its pollen on everything from Gorilla Glue #4 to MAC F2, creating crazy phenos like Mothman and 36 Chambers. When you grow out the pure HSSB, expect dense, rock-hard nugs that reek of cherry pastry and chemical funk. And yeah, since it drops as regular seeds, you've gotta do the work to hunt for that keeper mother, but once you find her, you're set for life.
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Similar strains
| Breeder | Socal Seed Vault |
|---|---|
| Type | mostly indica |
| Flowering time | ±55 days |
| Environment | Outdoors, Greenhouse |
| Lineage | High School Sweetheart |
| Descendants | Mothman, High School Sweetheart Breath F2 x Blue Zkittlez, High School Sweetheart Breath F2 x Cherry Cobbler, High School Sweetheart Breath F2 x Gorilla Glue #4, High School Sweetheart Breath F2 x Strawberry Milk Shake, High School Sweetheart Breath F2 x 9lb Hammer, High School Sweetheart Breath F2 x Strawberry Tahoe, High School Sweetheart Breath F2 x Wedding Cake |
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🧬 Explore the family: High School Sweetheart · Mothman · High School Sweetheart Breath F2 x Blue Zkittlez · High School Sweetheart Breath F2 x Cherry Cobbler · High School Sweetheart Breath F2 x Gorilla Glue #4 · High School Sweetheart Breath F2 x Strawberry Milk Shake · High School Sweetheart Breath F2 x 9lb Hammer · High School Sweetheart Breath F2 x Strawberry Tahoe · High School Sweetheart Breath F2 x Wedding Cake
Ancestry Pedigree
Gage Green Genetics
Unknown or Legendary
Dutch Passion
Unknown or Legendary
Original Strains
Unknown or Legendary
Original Strains
Gage Green Genetics
Gage Green Genetics
Unknown or Legendary
Gage Green Genetics
Clone Only Strains
Clone Only Strains
Original Strains
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Sensi Seeds
Sensi Seeds
The Seed Bank
Cultivators Choice
Original Strains
Original Strains
Original Strains
Original Strains
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Cultivators Choice
Unknown or Legendary
Gage Green Genetics
Growing High School Sweet Heart Breath: 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 High School Sweetheart 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.
High School Sweet Heart Breath FAQ
How long does High School Sweet Heart Breath take to flower?
High School Sweet Heart Breath typically flowers in around 55 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is High School Sweet Heart Breath an indica or a sativa?
High School Sweet Heart Breath is listed as mostly indica.
What are the parents of High School Sweet Heart Breath?
High School Sweet Heart Breath was bred from High School Sweetheart by Socal Seed Vault.
What environment does High School Sweet Heart Breath 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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Facts compiled from public breeder listings. Growing High School Sweet Heart Breath? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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