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Get G13 Hybrid Seeds in Boston, MA
Hybrid
THC: 20-24%
CBD: 0.1-0.5%
Flowering: 8-9 weeks
Few strains carry a mythology as durable as G13. The story — contested but persistent — places its origin inside a classified government breeding program in Mississippi during the late 1960s, with Afghani landrace genetics at its foundation. Whatever the actual lineage, the plant itself is not in dispute: a dense, resin-heavy indica-leaning hybrid with 20–24% THC, a kushy earth-and-pine aroma, and an 8–9 week indoor finish that rewards patient cultivators with some of the heaviest colas in the catalog.
Myrcene, limonene, and caryophyllene define G13's terpene signature. Myrcene provides the characteristic earthy musk and contributes to the wave of physical relaxation the strain is known for; limonene lifts the front of the high with a subtle brightness before the body effect takes over; caryophyllene adds a peppery herbal edge that sharpens the exhale. Buds are dense, almost spherical, and coated in amber trichomes by the time week nine arrives.
The high follows a familiar two-phase arc — an initial euphoric push that sharpens focus and lifts mood, then a full-body unwind that can run toward couch lock in larger doses. G13 is better suited to evening use, and it has earned a loyal following among growers who want a reliably sedating end-of-day option with meaningful potency rather than spectacle. Stress, chronic discomfort, and insomnia are the most commonly cited reasons people reach for it.
Indoors, G13 thrives in a standard soil or coco setup with moderate feeding. For cultivators in Boston, MA running a long-winter indoor tent, G13's 8–9 week flowering clock is efficient — start seeds in late October, harvest by January, and avoid paying peak heating costs with an extended veg period. The indica structure stays compact, making it a strong candidate for one of Massachusetts's six home-grow plant slots when density and potency per square foot matter more than stretch.
$6-11 per seed
In Stock
1
G13 Potency Profile
0%
35%+
~18%
20%
THC
High Potency
Strong effects - use with caution
THC20-24%
CBD0.1-0.5%
Trace CBD
THC:CBD Ratio200:1
Hybrid strains typically range from 14-24% THC
G13 Experience Profile
How this strain's effects compare to average hybrid strains
G13
Hybrid Avg
Potency
20% THC
+10%
CBD
0.1%
-3%
Relaxation
Moderate
+5%
Energy
Moderate
0%
Creativity
Moderate
+5%
G13 stands out from average hybrid strains in 3 of 5 experience categories
G13 Quick Stats
⚖️Hybrid
Strong
THC Content
20-24%
StrongCBD Content
0.1-0.5%
TraceStrain Type
Hybrid
Balanced effectsPrimary Effect
Uplift
Dominant Terpene
Myrcene
Premium quality genetics✓ Verified strain
About G13
G13 is a heritage indica-leaning hybrid in The Seeds Depot catalog. The strain's origin is the subject of long-running cannabis folklore — the most-repeated story places it in a 1970s research program at the University of Mississippi, with cuttings supposedly removed and circulated outside the program. Whether or not that origin is accurate, the genetics that travel under the G13 name today carry a consistent, recognizable profile and have been a parent in dozens of well-known modern crosses.
Visually, G13 finishes with dense, medium-sized buds in deep forest green, accented by bright orange pistils and a heavy trichome coating. The aroma leans earthy and woody, with sweet undertones and an unmistakable kushy finish. Smoke is smooth and the flavor follows the aroma — earth, soft pine, and a touch of sweetness on the exhale.
The experience is heavy and physical. Listed primary descriptors include relaxed, euphoric, and happy. G13 is a classic evening or late-afternoon strain — most users find it slows the day down rather than accelerating it.
THC commonly tests in the 20–24% range with CBD around 0.1–0.5%. Flowering window is 8–9 weeks indoors. Difficulty is moderate; G13 is a vigorous grower and tolerates a range of conditions, which is part of why the genetics have stayed in circulation for decades.
**Ordering & shipping.** G13 feminized seeds ship in opaque, vacuum-sealed mylar inside unmarked first-class US packaging. Free US shipping is available on qualifying orders, and every pack is backed by our 90% germination guarantee — failed seeds replaced free with photo proof submitted within 14 days of receipt.
**Storage.** Keep sealed in the original mylar at 40–50°F. Sealed viability is 3–5 years; once opened, germinate within 12 months for best results.
G13 Genetics
**Lineage:** Origin debated; widely believed to descend from Afghani × Thai landrace stock isolated in a 1970s research program
**Strain type:** Indica-leaning hybrid
G13's origin story is part of cannabis folklore — there's no definitive published lineage. What's well-documented is that the genetics circulating under the G13 name today consistently produce a kush-leaning, earthy profile with a heavy resin coat, and the cut has been used as a parent in dozens of modern hybrids (G13 Haze, G13 Widow, etc.).
Pack Sizes & What's Included
Each G13 seed pack ships with:
- Feminized photoperiod cannabis seeds (or autoflower where noted)
- Vacuum-sealed opaque mylar pouch
- Lot/batch ID card
- Printed germination guide (paper-towel method)
- Tracking number sent on dispatch
Pack sizes available: 5, 10, and 25 seeds. Per-seed cost decreases at higher pack tiers — the largest pack typically runs around 30–35% lower per seed than the smallest.
Growing G13
**Difficulty:** Moderate.
**Indoor:** 70–80°F with steady airflow. Tolerates a range of conditions — part of why the genetics have stayed in circulation for decades.
**Outdoor:** full sun in well-draining soil. Vigorous and resilient.
**Flowering window:** 8–9 weeks indoors.
**Harvest cue:** mostly milky trichomes with 10–20% turning amber.
Germination Guarantee
G13 seeds are guaranteed at a 90% germination rate using the wet paper towel method:
1. Soak seeds in distilled water for 12–18 hours.
2. Place between two damp paper towels on a plate.
3. Cover and store at 70–80°F.
4. Most seeds crack within 2–4 days.
If any seed fails to germinate within 14 days under these conditions, send a photo to support and we'll ship a free replacement — no questions asked.
Shipping & Discreet Delivery
- **Packaging:** G13 seeds ship in opaque vacuum-sealed mylar inside an unmarked first-class US envelope. No exterior branding identifies the contents.
- **Dispatch:** orders placed by 2pm ET ship the same business day, Mon–Fri.
- **Transit:** typically 3–5 business days within the continental US.
- **Tracking:** every order ships with a tracking number, sent by email at dispatch.
- **Free shipping:** available on orders over the qualifying threshold (see cart for the current offer).
Storage & Viability
G13 seeds keep best in their original mylar pouch:
- **Temperature:** 40–50°F (a standard refrigerator, not the freezer)
- **Humidity:** the sealed mylar maintains the proper level — do not open the pouch until ready to germinate
- **Light:** keep away from direct light
- **Sealed viability:** 3–5 years from date of packaging
- **Once opened:** germinate within 12 months for best results
Frequently Asked Questions About G13
Common questions answered by our experts
G13 is a Hybrid strain.
What type of strain is G13?
G13 is a Hybrid strain.
What is the THC content of G13?
G13 tests at 20-24% THC by laboratory analysis of mature flower.
What is the CBD content of G13?
G13 contains 0.1-0.5% CBD.
How long does G13 take to flower?
G13 has a flowering time of 8-9 weeks indoors under standard 12/12 photoperiod.
What does G13 smell like?
G13 carries aromatic notes of Earthy, Pine, Sweet.
What is the dominant terpene in G13?
G13 is Myrcene-dominant, which contributes an earthy, musky aroma.
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