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M 39 Granddaddy – Feminized Cannabis Seeds | Canada
M 39 Granddaddy Cannabis Seeds Feminized
M 39 Granddaddy is a feminized, Indica-driven hybrid with a hint of Sativa, bred from Grand Daddy Purple × M-39. It tests at approximately 24% THC with minimal CBD, flowers in a fast 50–65 days, and yields around 450 g/m² indoors or up to ~650 g per plant outdoors, typically harvesting in September. The genetics combine M-39's heavy yields and forgiving, resilient structure with Grand Daddy Purple's sweet, grape-and-lemon flavor and striking purple coloration, producing reported effects that start with a cerebral, euphoric lift before settling into deep physical relaxation.
Genetics: Grand Daddy Purple × M-39
M-39 contributes heavy yields, a short flowering window, and undemanding, forgiving growth — historically popular among commercial growers.
Grand Daddy Purple (GDP) contributes sweet, grape-infused flavor, sedating effects, and visually striking purple coloration.
M 39 Granddaddy Strain Details
Specifications published by Quebec Cannabis Seeds. Results vary with growing medium, technique, experience and conditions.
| Detail | Info |
|---|---|
| Breeder | Quebec Cannabis Seeds |
| Sex | Feminized |
| Genetics | Grand Daddy Purple × M-39 |
| Type | Indica-driven, with a hint of Sativa |
| Flowering Type | Photoperiod |
| Flowering Time | 50–65 days |
| Outdoor Harvest | September |
| THC | ~24% |
| CBD | Low |
| Indoor Yield | ~450 g/m² |
| Outdoor Yield | Up to ~650 g/plant |
Growth Characteristics
Dense buds on a moderate-height, bushy plant with robust branches that hold up well under heavy colas. The Indica backbone makes this a forgiving strain — it tolerates moderate mistakes in feeding or climate, making it a solid choice for novices or busy growers.
Flavor & Aroma
A bright, tangy lemon-citrus top note leads, backed by mild damp earthiness, a subtle sweetness, and a faint musk from the M-39 side — a layered profile balancing citrus freshness with old-school Indica warmth.
Terpenes
Likely key terpenes for this genetic profile include limonene (zesty citrus, mood-elevating), myrcene (earthy, sedating), caryophyllene (peppery, woody), humulene (herbal, spicy), and pinene (piney freshness) — treat this as a general profile for the genetic type rather than confirmed lab data for this specific batch.
Effects
Commonly reported: cerebral, euphoric, relaxing, strong, with subtle psychedelic-adjacent intensity at higher doses. Typically described as an initial mental uplift and creative spark, broadening into a soothing full-body calm that can lean toward couch-lock with heavier use.
At 24% THC, this is a potent strain — new consumers should start with a measured dose. Effects vary by person. Not medical advice.
Reported Uses
Some users report the relaxing, mood-lifting profile as supportive for stress, low mood, minor aches, tension headaches, or difficulty sleeping. This reflects general reported use, not medical advice or a treatment claim for any diagnosed condition — consult a healthcare provider before using cannabis for anxiety, depression, chronic pain, or any other medical condition.
Growing Conditions & Tips
- Training: Low-Stress Training (LST) or topping/FIM helps even the canopy and encourage multiple colas.
- Humidity: Keep flowering-stage humidity around 40–50% to prevent mold on dense buds; ensure good ventilation, especially in greenhouses or tight indoor setups.
- Medium: Grows well in soil (which tends to highlight the lemon flavor) or hydro (which can speed growth); keep feeding balanced and pH-correct.
- Flush: 1–2 weeks of plain water before harvest for a cleaner, smoother final smoke.
- Where to grow: Suitable indoors (compact form suits small-to-mid tents), outdoors in warm, dry climates, or in a greenhouse.
Frequently Asked Questions
What is M 39 Granddaddy? A feminized, Indica-driven hybrid bred from Grand Daddy Purple × M-39, known for its lemon-forward flavor and strong, relaxing high.
How much THC does it have? Approximately 24% THC, with minimal CBD.
How long does it take to flower? A fast 50–65 days; outdoors it typically harvests in September.
What's the yield? Around 450 g/m² indoors, or up to ~650 g per plant outdoors.
What does it taste like? Bright lemon-citrus with earthy, subtly sweet, and musky undertones.
Is it easy to grow? Yes — its Indica genetics make it fairly forgiving, well suited to beginners.
Buy M 39 Granddaddy Feminized Cannabis Seeds in Canada
Order M 39 Granddaddy feminized cannabis seeds online from Montreal Cannabis Seeds, a Canadian online seed bank with more than 10 years in business. Every order ships in plain packaging with no product names on the outside, and every order includes free seeds: the bigger the order, the more free seeds you get. Pay by credit card, e-transfer or Bitcoin.
How fast will my M 39 Granddaddy seeds arrive? We ship every day, and orders placed before 2 p.m. ET ship the same day. Canada Post standard shipping is $10 (4–11 business days, no tracking) and courier express is $25 (2–4 business days, with tracking). Express shipping is free on orders over $200. We also ship express to the US for $25 (2–3 business days, with tracking).
What guarantees do I get? Our 100% shipping guarantee means that if your order arrives damaged, wrong or incomplete, or never arrives, we replace it or send a new order. Our 80% germination guarantee covers your seeds for 90 days: if fewer than 80% germinate when you follow our instructions, we replace the seeds. We do not offer refunds or store credit. Read the full shipping and germination guarantees.
Legal Disclaimer
Cannabis laws differ by location. Buyers must know and follow all local, provincial/state, and federal laws before buying, holding, germinating, or growing cannabis seeds. These products are for adults 18+ (or as required by law) only where legal. We do not support or promote illegal activity. THC, flowering time, flavor, effects, and yield figures are estimates, not guarantees — actual results depend on the plant, climate, growing setup, and grower experience.
- Availability: 41 In Stock
- Model: Q.C.S.
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