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SR-71 by Purple City Genetics is loud, greasy, and built like a machine. Heavy gas, rubber funk, and sweet dough wrapped inside dense resin-rich flowers. We think this Feminized hybrid feels like modern OG genetics sharpened into something colder and heavier.
🤯 THC: 25%
😋 Flavor: Gas, rubber, biscuit dough
🧠 Effect: Relaxing, heavy, long-lasting
SR-71 Seeds
SR-71 combines Oaksterdam OG with Street Guru, creating a mostly Indica hybrid packed with modern American terpene intensity and strong production potential.
Purple City Genetics developed this line for growers who want stable structure, loud aroma, and reliable heavy harvests in a fast flowering cycle.
It grows vigorously with sturdy branching and dense resin-coated flowers, finishing indoors in around 8 to 9 weeks.
We really like this strain for growers looking for Feminized cannabis seeds with bold effects, expressive aroma, memorable flavor, and dependable modern OG performance.
SR-71 Flavor And Effects Feel Dark, Thick, And Heavy
The flavor profile lands hard from the first inhale. Gas and earthy rubber dominate immediately, while sweet biscuit dough lingers underneath the smoke with a warm greasy finish.
We think it tastes like fresh cookies cooling beside an engine leaking fuel in the rain. Dirty, sweet, and impossible to ignore.
The effects arrive quickly and settle deep into the body. Muscles loosen. The outside world slows down while the head drifts into a calm detached space.
It feels like sinking into heavy leather seats while city lights blur through fogged windows. Slow, physical, and built for complete disconnection.
SR-71 seeds are perfect for smokers who want modern gas-heavy genetics with serious body relaxation and thick resin production from beginning to end.
SR-71 Characteristics
| Strain type | Feminized |
| Genetics | Oaksterdam OG x Street Guru |
| Indica/Sativa | Mostly Indica |
| THC | 25% |
| Effect | Relaxing, heavy, long-lasting |
| Flavor | Gas, rubber, biscuit dough |
| Terpenes | Gas, earthy rubber, sweet dough |
| Flowering time | 8-9 weeks / ±60 days |
| Structure | Strong vigorous branching |
| Bud appearance | Dense resin-coated flowers |
| Difficulty level | Easy to moderate |
| Best cultivation technique | Canopy control and airflow management for dense buds |
SR-71 FAQ
Is SR-71 seeds Indica or Sativa?
SR-71 is a mostly Indica strain with strong relaxing and body-heavy effects.
What terpenes does this strain have?
It features loud gas, earthy rubber, and sweet biscuit dough terpene notes.
Is this strain good for beginner growers?
Yes. We think its stable growth and reliable structure make it manageable for most growers.
How to grow SR-71 seeds?
Maintain airflow around dense flowers, manage the canopy, and expect resin-heavy buds after 8 to 9 weeks.
Why do growers choose SR-71?
Because it combines classic OG influence, modern terpene intensity, and strong resin production in a fast-finishing hybrid.
- THC
- Very High (20% or +)
- CBD
- Low (0 - 1%)
- Yield
- Large
- Flavor
- Fuel, Earthy, Cookies, Sweet
- Effects
- Relaxed
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